Disgusted with Mtn

I am actually extremely disappointed with Mtn. I have been trying to sort our my contract since May 2021. I took out a contract in April and the amount adviser was R679 however since I took out the contact I have been paying over R1000 for the contract. This is actually *****ing my money and you have no right to do this. I contacted multiple people to try and sort this out and to date nothing has been done. I am actually going to stop my debit order and let's see how quickly you contact me.