Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Microsoft can't see who is sitting at the keyboard typing in the payment card information. In addition, it isn't Microsoft's responsibility to ascertain whether someone typing in valid payment card information is actually entitled to use that card information. The only way that you can make this stop is to cancel that card so that it can't be used anymore by anyone and get yourself a new card account.