Billing Issue

two months back I have upgraded my package to price lock for family package, that was the worse decision I have ever made in my life I regret ever moment. my new subscription is supposed to be R640 as per contract. First month they my debit order was R1110. I questioned that and was told I need to pay prorate. o kay all well and I paid it. second month September my debit order is R780 and I called to enquiry and no one is able to assist me. I have send several massage to your Facebook page every time I am getting same respond we have escalated your concern but no answer .When I ask about turn around time for escalation I am told they can say. I am so aggrieved and frustrated. I am desperately looking for help. why are you treating your client lie that it is because you know you have up hand to disconnect our serviced? my cell number ***