Tellers Error Not Yet Corected after 3 MONTHS!!!

I made a cash deposit into the Standard Bank Delmas Branch in Mpumalanga, early May 2015 for my Diners Club Credit Card Payment, yet this payment was not reflecting on my credit card account and so i left it for a while hoping it would reflect eventually. I kept receiving numerous calls from Diners Club regarding my account in arrears however I sent proof of payments that I had made and they could not find them. I kept phoning Standard Bank yet the intellectual capacity is at a minimum and therefor an absolute failure. I eventually went to the bank itself and after a long wait one of the tellers noticed the reference number on my deposit slip was not what the teller had put in, the bank teller missed a number. This was in August, I was told they were going to contact Diners Club and sort the situation as they could not give me the documentation that the deposit had an error due to the tellers negligence. All the tellers denied they made my deposit. Another month has passed and nothing has been done. The disgusting service i have been provided is appalling. Diners Club want to blacklist me for a stupid error a teller made and you are doing nothing to sort it out. Service is ****!!