Useless and pathetic customer service

Your customer service staff is absolutely USELESS!!! I have called in 03 times this morning and still no-one can help. FNB made a huge mistake in transferring funds into my cheque card "AS AN ERROR ON THEIR SIDE" and now your'll reverse the monies and CHARGE ME ON THIS!! how is this my ERROR??? when i requested for a manager to call me, the agent Kethu gives me a big attitude about getting a manager to call me and doesn't even want to provide me with a simple reference number. Thembi has kept me on hold for over 20 mins, Kethu was rude and had to actual argue for a reference number (rh ********** 534) and the rest of your staff just transfer calls around as they are so ***********!!