Over billing and incorrect billing

I have recently upgraded to a samsung s6edge . On promo for R768 on a mychoice350. This concludes to my knowlage that i would receive 350 minutes ,500 smses and 500 mb of data inclusive .Since day 1 . I was billed over R1000 per month . This month again was R1300+. Looking at my statement . I am billed for the data and sms and handset seperately. That is supposed to be inclusive of the promo. After laying numerous complaints about this. And spending hours on the phone. I have ended up for the worst. I now get no data or sms bundles. And still end up being billed for the handset. And i came to realise that my account is a topup so i cant over spend. In a sence this is fine. So i can budget. I have the autopage app on my phone and when i last had a chance to go to an outlet the info on their computer differs from the billing i see on my phone. But what i see on my phone. Is what gets deducted off my account. Everytime i call autopage i get pathetic assistance. And when i give an old referance number. The discription of what was logged is not what i complained about. And these so called calls are closed but never once has someone from autopage phoned me back to ask, are you satisfied.