Frustrating service at Fnb

Fnb is really messing customers around today and I’m very upset. In December 2018 I paid R19000 in my credit card and then decreased my limit. This morning I get a call at 8:45am saying my account is overdrawn and I ask how and they say cos by the time they debited the interest I had already deceased my limit which I understood. The while on the phone with the consultant I made an eft of R360 cos she said my account was over drawn by about R359. She then confirms the payment as reflecting. About 20minutes later I get a message saying they have debuted a further R360.02 and when I call and ask why cosnive already made the payment and the comsultantat confirmed receipt they say the debit was system generated. She says she will updat the system and it will take 15minutes to update and then I can transfer back the money they took to my cheque account and I did exactly that. Now this afternoon I receive an sms from Blake say I’ve been handed over. How am I handed over if my account is not overdrawn and payment reflected. This is ridiculous