Bad IT systems and bad support

I deposited a bank draft into my account and the bank could not clear the draft so they reversed the transaction, however my account is still in the positive and I cannot access my funds. I called the Call Centre (3 times) and my personal banker (email) and each and every one of them passed the buck to another person - what a run around Being with the bank for almost 50 years, it is pathectic that a simple arithmetic shows that I have funds and I am entitled to them I am considering moving my a/c to another bank