Unhappy customer

My price lock contract came to an end on the 20th of November. I got a call from multichoice on September regarding a new contract and a consultant said we will start with a new deal after the 20th of November and I never received a call. I took it upon my self to call them and was told that my call can't be transferred to the pricelock dapartment but they will escalate my call to them so that they can call me back but their promise failed. I called for the second time and the same promise was made and I made the lady who was assisting me that I am not going to pay the amount I see on my account because I asked for a new pricelock contract and she promised that I will get a call from them but nothing happened. I send them a message on a number that she gave me and was promised to get a call within 48 hours of which now is over 100 hours without receiving any call from them but to charge me R680 on my account they did it without any exception. Multichoice customer service is bad