Bad Service

I am a client for the last 20 years. I have a credit card with them where they take the money off every month via debit order. Recently I sold my previous bakkie and the money was transferred into my Std cheque account. Two amounts were deducted from my account without my accent and transferred into the credit card. When I query this at the branch I was told that that is the way they operate when there is a use amount in your account. A week later I went back to the branch asking them if I pay another amount in the credit card will I be able to withdraw this again cause I am in the proses of buying another bakkie and need this for a deposit. They confirmed at the branch yes it can be done. When I tried to withdraw this I was informed that the card was revoked and I need to pay in another amount and then I can apply for the card again. I went from branch to branch and spoke to the card division per phone at the branch every time I was given a different story. I went to the card division myself only to be informed that they don't speak to clients. I think they are a bunch of idiots and **********.