Standard Bank double charging account fees

I have a bundled option where my monthly fees are supposed to cover both my cheque and credit card. I get double charged on my credit card for monthly fees. I have now reported it many many times. So far it has been fixed twice where I was refunded the fees. It goes well for a month or so and the we are back at the same story again. The prestige line (email) is very slow to react or contact me. What they seem to forget is that there are many other options in the market