Transfer money without my conscent

Standard bank, transferd all my money up to the last sent from my cheque account to my joint homeloan account without any one notification or authorisation from me. Leaving me with a full trolly of goods and a red face at a pay point. I was never responsible for payment on the homeloan account nor have I ever transferred money to my homeloan account, as this was done from my wife's account, we are married ANC so Std bank had no authority to take money from my account without my conscent.