FNB - how they DONT help you

I am find it amazing how Fnb is so fast to offer me a credit card limit increase to R11 600 with a click of a button , yet i went in last week Wednesday to pay and close my credit card, got the cancellation letter and even had the guy cut up my card in front of me, only to see on the Saturday that its still open,I called into the center on the number I was given only to be told i still pay in an extra R35.25 and i need to fill in a cancellation form and sent that to the(Which i watched the guy do on that Wednesday I cancelled) my husband and I go into the bank and was told it will all be sorted out on Monday, which it wasn't. Now it is Thursday a week and a day since i asked for my credit card to be closed and FNB STILL haven't closed it,how can you be so FAST with making credit available to use yet you find it too confusing to close a credit card?????? so disgusted in FNB they ask how they can help you yet only want to help themselves.I will be changing my account and will be in the market for a NEW bank.........................AND STILL WAITING FOR MY BLADY CREDIT CARD TO BE CLOSED