Acc overline

Account overline. I cant do anything all my cash is now stuck in my credit card. How do I rectify this. All my debit orders are going to bounce. Now i will be charged additional fees. Its sunday. The post i made on facebook said to phone. The call centres arent open on a Sunday. Leaving absa asap. I never recieved any notification. If you can change my account to overline on a sunday without any warning, then you should be able to rectify it.