Legal / About and business details
About and business details
The registered identity behind Top Billing, as the e-commerce disclosure rules expect.
Version 1.3 · last updated 2 October 2026
Top Billing is built and operated by VD Enterprises. These are the details you are entitled to have about the business you are dealing with.
Business details
| Item | Detail |
|---|---|
| Trade name | VD Enterprises |
| Legal name of the proprietor | Vasudev |
| Constitution | sole proprietorship registered in Tamil Nadu, India |
| Principal place of business | No. 102, Kudiyana Theru, Melapoovanur, Needamangalam, Kalacheri, Tiruvarur District, Tamil Nadu 612803, India |
| GSTIN | 33BUTPV1085N1ZQ (regular registration, since 15 November 2024) |
| Website | topbilling.in |
| Customer care | Email support@topbilling.in — answered Monday to Friday, 10:00–18:00 IST, excluding public holidays in Tamil Nadu |
| Grievance Officer | Vasudev (Proprietor) — grievance@topbilling.in |
We have no other place of business, no branch office and no agent authorised to contract on our behalf. Anyone offering Top Billing accounts, credits or support from another address or email domain is not us.
What we do
We run an AI API gateway for developers and teams in India who want to use leading AI models with prepaid, rupee-denominated billing, through the APIs their tools already speak. We do not train models. We route your requests to model providers, meter them exactly, and account for every paisa.
How we work
- Every request is metered on the tokens the model reported — never estimated after the fact, and never invented when a provider stays silent.
- Money moves only inside the database, under row locks and append-only rules. A correction is a compensating entry, so the history always shows both the error and the fix.
- Prices change only by publishing a new pricing version with an effective time. An active version is frozen.
- Your provider credentials are never involved; ours live in a secret store and are never written to a database or a log.
- Customer-facing errors never name an upstream provider, host or model. What you see is our behaviour, not theirs.
Other documents
- Terms of Service — The agreement between you and VD Enterprises for using Top Billing.
- Acceptable Use Policy — What you may not do with the Service, and what happens if you do.
- Privacy Policy — What personal data we process, why, where it goes, how long we keep it, and your rights.
- Cookie Policy — The only cookies we set are the ones that keep you signed in.
- Data Processing Addendum — The processor terms that apply when you route personal data you are responsible for through the Service.
- Sub-processors — Every third party that processes data on our behalf, what for, and where.
- Credits, Refunds and Cancellation Policy — How prepaid credits work, what is charged, and when money comes back.
- Service Delivery Policy — Nothing is shipped. What you buy is available within minutes, and usually at once.
- Referral Programme Terms — Invite someone, and when they top up you get credits. The exact rules.
- Service Level and Support Policy — What we aim for on availability and response, stated as targets rather than promises.
- Grievance Redressal Policy — How to complain, what we must do about it, and where to go if we fail you.
- Responsible Disclosure Policy — Report a vulnerability in good faith and we will not come after you.
- Contact — How to reach us, and what to include so the first reply is a useful one.