Double billing on credit card not yet reversed

There was a double debit on my credit card early february. This was reported immediately by my wife. Told by Standard that because I was the cardholder and my wife's was a secondary card, I had to report this. This was done.. Was assured that it would be reversed in 7 days. Nothing happened. Then reminded Standard bank again who are is investigating and \escalating". Still nothing currently. ***<br> Very shabby service for a client of nearly 50 years"""