Incorrect Amount Debited

I am highly disappointed with DSTV. On Nov I was called and offered a price lock for R499 12 month contract. The 1st debit order Dec was R621, called the customer service and was told the extra fees will be reversed. Jan same story and again called was told a different story and again promised a consultant from a different department will called. Guess what Feb same thing. Called the center and spoke to a lady called Nicole. She explain all sort of things I did not understand and told me she escalated the matter and I shall receive a call from the price lock department and I know they will not call. She now tells me the contract is for 24 months and not 12 months. I will like the copy of the recording because I was told of 12 months and not 24 months and also can my account be deducted with the agreed amount of R499. I regret taking up the price lock. Please remove my number from you database and don't ever call me about any products you offering. Tsholofelo ***