Contact
One address, read by a person. There is no form, no ticket number and no chatbot.
The most useful thing you can send
A rate that no longer matches its source. Every fee on this site carries a link to the platform’s own published schedule and the date it was read, and schedules change without notice. If a figure here disagrees with the platform, the platform wins — send the platform, the line, and ideally the link, and it will be corrected, re-dated, and recorded on the changes page so everyone can see what moved.
Also welcome
- A platform you would like covered, and where its fees are published.
- A fee this site models wrongly, or a case where the arithmetic breaks.
- An option a platform offers that changes the answer and is not here.
- Anything unclear. If a page needed re-reading, that is a problem with the page.
What this site will not do
It will not tell you where to sell, review your shop, or take payment to feature a platform. There are no affiliate links here and no arrangement under which any platform has paid to appear, rank higher, or be described a particular way. Requests along those lines get a polite no.
If you are writing about fees
The rates are downloadable as open data under CC BY 4.0, and the calculators are embeddable for free. Neither needs permission or an email first.