Being overcharged, contact center refusing to help

I've been using DSTV access which is R105, when I checked on the app, whatspp and the contact center I was being charged re connection fees taking it up to R155 while my services are active. I called the contact centre and the first person said they were adjusting the payment as I am being overcharged and after that the call instead of the amount being R105 the amount had now increased to R250. I called again and i was told that they cant make changes on the system and that the matter will be escalated to the finance team within 24 hours id have been sorted. Today I called again and the lady is still telling me that they will log the call with the finance team and my time for payment is in the next few days.