FNB CREDIT CARD PENDING PAYMENTS NOT CLEARING

I have had my credit card payment deducted from my FNB Cheque account on the 25th November, it is now the 01 december and the payment is still lying as pending. Uncleared. and this is FNB to FNB. I have tried to call through to FNB with no luck whatsoever, not even to the number on the back of my card works. when I go through the messaging service you seem to wait around 45 minutes if you are lucky to get a response and then 90% of the time the call gets dropped and you have to start all over again. I cannot get through to FNB to sort this out. it is just poor customer service in general.