BAD SERVICE AND FAULTY SYSTEMS

My Woolworths loan and store card was handed over to them. After phoning for total outstanding balances and settlement amounts... i have paid both accounts in full. Now everytime i phone to get my paid up letters there is stories. Everytime they say i still have balances on these accounts and everytime the amount differs. MY ACCOUNTS ATE PAID IN FULL ! CHECK YOUR FACULTY SYSTEMS!!! They are fast to phone and want money but now they I must struggle to get my name cleared. No this is not on