Shocking service Virgin active head office

I cancelled my contract with VA and they invited me to come back with a 50% discount for the first 3 months. I accepted this and the first 3 months they repeatedly debited me for the full amount. Which caused the payment to bounce. I then phoned head office to recify this and paid the correct amount using a payment link. This happened all 3 months despite numerous phone calls throughout the month to make sure the debit order was for the correct amount. Even though all 3 months are paid now , my app is still blocked and I can't get into the club to train I have probably phoned 20 times in 3 months to try and get this sorted. I have emailed as well as asked Reception at the gym to assist. No one has followed through. Every time I phone, the person says, oh yes I see that the outstanding amount needs to be written off as it was a discount, but then does nothing about it. I am honestly shocked, how difficult can it be to follow through with something untill it's done. !!!??? I have dealt via email with Lelethu Funani and Siphokazi as well as other people over the phone.