credit card blocked

I have a credit card with African Bank It expired last year September.Yesterday I called the call centre to ask what to do they said I must go to the branch.when I asked what will the branch need he said i will need ID and proof of residence.I go there today they ask for docs and surprise the lady said I need the Bank statement as well!!!.I don't get why because its not a new application .I go and get the statement and she tells me my credit card is blocked and will take 24 hrs to unblock.I get to work and fone after to ask the call centre if the application for unblocking is received.the lady says yes but they wont unblock it because of my other accounts which are in arrears.<br> <br> I know that and I have an arrangement in place to settle those.My big question is why is my credit card blocked because it is up to date and it has nothing to do with other accounts, its a separate account on its own.I need my credit card opened African bank.PLEASE .and in future teach your stuff to ask relevant questions to customers. I now ran around looking for docs that were not mentioned let alone being used because of your silly punishment.Please resolve this i need my credit card....