Extremely dissapointed

I have changed my account to a cheque account and was advised that all my debits have been moved to Cheque account and now my CREDIT CARD debit did not go off on this new cheque account and money was AVAILABLE . This is not the 1st time , THIS WILL RUIN MY CREDIT HISTORY PROFILE with the bank, i DEMAND that this be sorted out immediately and i do not want to pay charges, i am extremely irate as this is not my faults.i also request a letter stating that i am not in bad record with bank.