Yes you can. You can give the account holders main phone number. Even though they may accept payment, they will not under any circumstances give you any account information, including something as seemingly small as how much is owed on the account. It's pretty much like going to a bank and being able to deposit any amount into a given account but they won't allow you to withdraw from the account or give you any personal proprietary info.
That would be a question for the employees at the store.
Thanks! Your answer is awaiting moderation.