Price lock **** from DSTV Multichoice

I have been on a premium subscription for years with no problems. Then I have moved to a new residence and saw price lock being advertised. It was advertised at R799 per month. This seemed as a good deal at the time. This is a complete lie as they bill me R1100 or a R1010 per month for the last two months. I did not rent any box office movies or anything else that can increase the monthly fee. After numerous calls and cases locked I had no call from them yet to explain my account to me. I know for a fact what I signed up for and if I can get my hands on the recording where by I entered this arrangement I can proof that I asked more then once what my monthly fee is. Because of no contact number for price lock accounts its impossible to sort out your account and dstv just keep on *****ing from me every month. Now I sit with a 2 year contract and they take money against there advertised promise and there is nothing I can do because if I stop paying I get blacklisted for it as I will be in breach of contract. They are a bunch of ******* and *****. Please anyone that is reading this don't fall for there ****s and false advertising..