Poor Service from RCS Staff

Unhappy customer with the poor service i have received from RCS , always pay mu account in time and on the 30th of April i paid my account R1000 and the consultant at the stores misprinted 1 number from my account and the money was paid into a wrong account, on the 2nd of May i started receiving messages from RCS that my account was not paid i then call them and tell them that i have paid and when i compare the slip and my card i saw that 1 number was wrongly type. RCS told me to sent that proof of payment to their payments department and the issue will be resolved in 48hrs, that did not happen and i kept receiving calls that i did not pay my account and i went back to the shop where i made the payment to resolve the issue the Store called RCS and i was again promised by RCS it will be resolved in the next 48hrs and yet nothing was done . I then paid my account again and until today nothing has been done by RCS