Privacy Policy
Last updated 9 November 2026
Our contact details
- Name: Adrian Kwiatkowski, trading as NumiCrown
- Email: [email protected]
Adrian Kwiatkowski is the “controller” of the personal information described here under UK data protection law. For any question about your information, email [email protected].
We collect only what is needed to run the site. We do not sell or share your information for marketing, we do not send marketing emails, and the site has no advertising or tracking cookies.
What we keep, and why
| Information | Why we keep it |
|---|---|
| Your account: username, email address, password (stored only in encrypted form, never readable by us), the date you joined and when you were last on the site | To run your account, let you log in and reset a forgotten password. |
| What you add: display name and “about” text, comments, and any notes, serial numbers or photographs you record in your collection | To show them where you asked. You can edit or remove them from your profile. |
| Pro orders: the plan, the dates it runs, the amount, and the order number, email and country Paddle sends us | To switch Pro on for your account, answer questions about an order, and keep the records UK tax law requires. |
| Contact form: your name, email address, message and the page you wrote about | To reply to you. |
| Security and server logs: your internet (IP) address, the pages you asked for and the type of browser you use | To keep the site running and secure, find faults, and stop people guessing passwords, opening accounts in bulk or overloading the site. |
Under UK data protection law, we use your account and order information to provide what you signed up for (a contract), keep tax records because the law requires it, and use security records, server logs and contact messages because we have a legitimate interest in keeping the site safe and answering you.
Payments
Pro is sold through Paddle.com, our reseller and Merchant of Record. When you buy a plan, you give your payment details to Paddle, not to us. We never see or store your card or bank details. Paddle tells us what was bought, by which account, and the order number. Paddle’s use of your information is set out in Paddle’s privacy policy.
Who else handles it
Only the companies we need to run the site: Paddle for payments, the company that hosts the site’s server, Cloudflare, which protects the site from attacks and delivers its pages and photographs quickly, and the email service that sends password-reset and order emails. They may use your information only to provide that service to us. Where one of them handles it outside the United Kingdom, it is protected by the safeguards UK law requires. We will share information with the police or other authorities only where the law requires it.
How long we keep it
- Your account and what you added to it: until you ask us to delete it.
- Pro order records: six years after the order, because UK tax law requires it, even if the account is deleted.
- Contact messages: for as long as we need them to deal with what you wrote about, and no longer than two years.
- Security records of internet addresses: from 15 minutes to an hour.
- Server logs: up to 14 days, unless we need them longer to look into an attack on the site.
People named in the catalogue
The catalogue records the history of individual notes, and that history sometimes includes the name of a collector or a named collection. We take these names only from sources that are already public, such as auction catalogues, journals, books and museum records, and we show them because we have a legitimate interest in recording where a note has been. If your name appears and you would like it removed or changed, email [email protected] and we will deal with it promptly. The rights below apply to you too.
Your rights
You can ask us for a copy of your information, to correct it, to delete it, to limit how we use it, or to object to our using it. You can also ask for the information you gave us in a common format that you can take to another service (data portability). Email [email protected] from the address on your account and we will answer within one month. There is no charge. Deleting your account removes your profile, comments and collection with its photographs.
Complaints
If you are unhappy with how we have handled your information, please tell us first at [email protected]. We will acknowledge your complaint within 30 days, look into it, and tell you what we found and what we have done about it without undue delay.
If you are still not satisfied, you can complain to the Information Commissioner’s Office (ico.org.uk).
Children
Anyone can browse the catalogue; we collect nothing from visitors who are just reading. You need to be 13 or over to create an account, and 18 or over (or have a parent's or guardian's permission) to buy NumiCrown Pro. If you believe a child under 13 has given us their information, email us and we will delete it.
Changes to this policy
If we change how we use your information, we will update this page and its date. If a change is important, we will tell members by email.