Unhappy with the TAP and GO Facility

I have had several correspondences from the private client team but with no satisfaction at all with the provided feedback and support. I logged my query on the 24th of July 2018, today is the 20th Sept 2018 and no joy has come from the support team. I indicated I want to deactivate the Tap and Go functionality from my Debit card. I have gotten 3 to 4 emails saying it's disabled and I must just go to an ATM do basic transactions to fresh the change and all should be in order. I have done that serval times and the last time I did that and tested a transaction of R330 went off my account via Tap and Go and worse part t it didn't ask for a pin. What will it take to get what I clearly have requested, who must I complain to get this done? If I don’t want a certain service on my profile, I should be not forced to tolerate it and the worst part, have my time wasted with different agents telling me it's sorted and yet it is not.