Every month the same issue

Every month I pay my Credit Card and Personal Loan religiously, and every single month I am hounded by your people telling me I haven't paid. Every. Single. Month. <br> <br> I double check the reference numbers with your people on the phone every single month and they are (still!) correct. Every single month I have to pay extra to send proof of payments to prove that I have paid.<br> <br> What is wrong with your system? I raise this issue every single month and nothing gets done. Next month I am taking you to the Ombud for harassment if this happens one more time.