Poor customer service

I transacted at a store the money went out of my card but declined on the store side. I called customer service ,they told me to send a slip to Authorisation department via email which I did , thereafter. I went to the Northgate branch where I was told that the transaction had went through. However the store sent me correspondence from their store telling me it hadn't gone through. I have been waiting for response from the Authorisation team but nothing is being done. I have just moved to absa this is one of my 1st transactions and already experiencing this. Stay away from this bogus bank I am closing the account soon as my issue is resolved .