Terrible lounge experience with standard bank

One month after visiting a bidvest lounge money was taken from my account for that lounge visit. I spent 30 minutes on the phone just trying to figure out if it was a *****ulent charge, turns out my credit card only allows me lounge access into a different airport. why was I not told that I entered the lounge? Only to find out one month later. I understand that the spend limits may have changed, and lounge access at specific airports apply and that information I can find out for myself on the app, but this is a horrible client experience being charged one month later? For something I could have been told when I entered the lounge. You can tell me I’m 5 minutes early and will be charged but you can’t tell me my benefit doesn’t apply at the airport I am at? I will be cancelling my credit card.