PM does not have any physical store. But you can easily get the account number yourself
Login My Account and get the account number from Profile page (or if you use PM app, get it from the Account page)
If you have trouble logging as, ask CS agent by direct message
https://productioncommunity.publicmobile.ca/t5/notes/composepage/note-to-user-id/22437
**Monitor your Community inbox (envelope icon on the top right) after ticket submitted, CS Agent will reply to you there
