Force pay for no valid account

I have or shall i say used to have a app that was working, other day went in there again then no valid loging try to reset tells me no account, then BOOM on payday i get calls saying the account is in arrears.. The more i try to tell them the app says i dont have account the more they forcing me to pay... So stupid me went and paid thinking maybe the app will work afrer, still saying i have no account