These Terms of Service (hereinafter “Terms”) govern the relationship between the operator of the BillingEngine service (hereinafter “Provider”) and the user (hereinafter “Customer”). By using the service, the Customer confirms acceptance of these Terms.
1. Provider identification
The BillingEngine service is operated by a natural person conducting business under a trade licence in accordance with the laws of the Czech Republic:
| Operator | Michal Keller |
| Company ID (IČO) | 88057801 |
| Registered address | Sušilova 1337/2, 500 02 Hradec Králové, Czech Republic |
| info@billingengine.cloud | |
| Website | billingengine.cloud |
| VAT | Not VAT registered |
2. Subject of the contract and service description
BillingEngine is a cloud SaaS platform providing an API for:
- receiving and recording service usage records (Detail Records, DR),
- rating — real-time price calculation based on a defined price list,
- generating billing data for a selected period,
- managing price lists, customers, and billing rules.
The contract is formed upon completion of registration or activation of a paid plan.
3. Registration and user account
3.1 Registration requirements
The Customer must be at least 18 years old or acting on behalf of a legal entity. The Customer is required to provide accurate and up-to-date information.
3.2 Security
The Customer is responsible for protecting login credentials and API keys. The Customer bears full responsibility for all activity performed under their account. Any suspected compromise must be reported immediately to info@billingengine.cloud.
4. Pricing plans and payment terms
4.1 Billing
Paid plans are billed monthly in advance. Invoices are sent electronically to the registered e-mail address. Payment is due within 14 days of the invoice date. The Provider is not VAT registered — prices shown are final.
4.2 Overage
Exceeding the monthly DR limit is billed in arrears at the overage rate of the applicable plan. Overage is not available on the Free plan — once the limit is reached, DR ingestion is suspended.
4.3 Late payment
If payment is overdue by more than 10 days, the Provider will send a reminder by e-mail. If payment is not received within 7 days of the reminder, the Provider is entitled to suspend access to the Service.
4.4 Price changes
Prices may be changed with 30 days’ notice. The Customer may terminate the contract within this period. Continued use of the Service after the effective date of a change constitutes acceptance of the new prices.
5. Cancellation and termination
5.1 Cancellation by the Customer
The Customer may cancel their account at any time via account settings or by sending a request to info@billingengine.cloud. Cancellation takes effect at the end of the current billing period. Fees for the current month are non-refundable, except as provided by the consumer withdrawal right under clause 5.3.
5.2 Termination by the Provider
The Provider may terminate the contract with 30 days’ notice or immediately in the event of a material breach of these Terms.
5.3 Consumer right of withdrawal
A Customer who is a natural person acting outside the scope of their business (consumer) has the right to withdraw from a contract concluded remotely without giving a reason within 14 days of its conclusion, provided that performance has not yet commenced at their express request.
5.4 Data after termination
After account cancellation, data is retained for 30 days to allow for account reinstatement. After this period, data is permanently deleted. The Customer is responsible for exporting all necessary data before cancelling their account.
6. Service availability
Note: BillingEngine is operated by a single person in their spare time alongside full-time employment. The commitments below are set to be realistically achievable.
6.1 Guaranteed availability
| Plan | Availability | Max. downtime / month |
|---|---|---|
| Starter | 99.0% | ~7.2 hrs |
| Growth | 99.0% | ~7.2 hrs |
| Scale | 99.2% | ~5.8 hrs |
| Enterprise | 99.5% | ~3.6 hrs |
The Free plan is not covered by availability guarantees. Measurements are taken by the Provider using internal monitoring — the Customer may request a report at info@billingengine.cloud. Scheduled maintenance and outages outside the Provider’s control are excluded from availability calculations.
6.2 Scheduled maintenance
Scheduled maintenance is announced at least 48 hours in advance by e-mail. Maintenance is carried out preferably outside business hours and on weekends. Total duration will not exceed 16 hours per month.
6.3 Response times
| Situation | Response time | Resolution target |
|---|---|---|
| Service completely unavailable | 4 hours | 24 hours |
| Critical feature degraded | 8 hours | 3 business days |
| Non-critical feature impaired | 2 business days | 7 business days |
6.4 Technical support
| Plan | Response time |
|---|---|
| Starter | within 3 business days |
| Growth | within 2 business days |
| Scale | within 1 business day |
| Enterprise | within 12 hours |
Support is provided exclusively by e-mail at info@billingengine.cloud.
6.5 Compensation for downtime
If availability falls below the guaranteed level due to a cause on the Provider’s side, the Customer is entitled to a discount on the monthly fee:
| Actual availability | Discount |
|---|---|
| 99.0% – < guaranteed level | 10% |
| 98.0% – < 99.0% | 25% |
| 95.0% – < 98.0% | 50% |
| < 95.0% | 100% |
Compensation must be claimed in writing within 15 days of the end of the affected month. Total compensation will not exceed 3 monthly fees per calendar year. Compensation does not apply to the Free plan and is deducted from the next invoice (not paid in cash).
6.6 Exclusions from availability guarantees
Availability guarantees do not apply to outages caused by scheduled maintenance, actions by the Customer, third-party infrastructure (internet, DNS, CDN), force majeure, or the Customer’s failure to pay.
7. Prohibited conduct
The Customer must not use the Service to:
- submit fraudulent data to manipulate rating results,
- carry out attacks on infrastructure (DoS, DDoS, brute-force, scanning),
- attempt to gain unauthorised access to other customers’ data,
- use the Service for unlawful purposes or in violation of applicable law,
- resell or sublicense access to the Service without written consent,
- automatically scrape Service content outside of the API interface.
Violation of these rules entitles the Provider to immediately suspend or terminate access without any right to a refund of fees paid.
8. Limitation of liability
The Service is provided “as is”. The Provider is not liable for indirect damages, lost profits, or outages caused by third parties. The Provider’s total liability is limited to the fees paid by the Customer in the 3 months preceding the event giving rise to the claim.
This limitation does not apply to damages caused intentionally or through gross negligence, nor to customers in the capacity of consumers to the extent that such limitation would be contrary to consumer protection law.
9. Intellectual property
All rights to the Service, its infrastructure, and documentation belong to the Provider. The Customer receives a non-exclusive, non-transferable right to use the Service in accordance with these Terms.
Data submitted by the Customer (DR records, price lists, customer data) remains the property of the Customer. The Provider is authorised to process such data solely for the purpose of providing the Service.
10. Personal data protection (GDPR)
The processing of personal data is governed by EU Regulation 2016/679 (GDPR) and applicable national law. The Customer has the right to access, rectify, erase, restrict processing, and port their personal data.
Details are set out in the Privacy Policy.
Complaints may be submitted to the relevant data protection authority in the Customer’s country of residence.
11. Confidentiality
Both parties are obliged to maintain confidentiality regarding the other party’s confidential information for a period of 3 years after termination of the contractual relationship.
12. Force majeure
The Provider is not liable for failure to perform caused by circumstances beyond their control — in particular natural disasters, armed conflicts, pandemics, or cyber attacks on third-party infrastructure.
13. Governing law and dispute resolution
These Terms are governed by the laws of the Czech Republic.
A Customer who is a consumer may contact the Czech Trade Inspection Authority as the alternative dispute resolution body at www.coi.cz, or use the EU online dispute resolution platform at ec.europa.eu/consumers/odr.
Disputes between businesses shall be resolved by the competent court of the Czech Republic at the Provider’s registered address.
14. Amendments
The Provider reserves the right to amend these Terms. Customers will be notified by e-mail or via a notice in the Service interface at least 30 days before the changes take effect. Continued use of the Service after the effective date constitutes acceptance of the updated Terms.
These Terms are effective as of 17 March 2026. The current version is always available at billingengine.cloud/en/terms/.