DSTV billing a joke

DSTV have no clue what they are doing. For 3 months they have royally *****ed up my account - because they debited me incorrectly. I am supposed to be on a pricelock - yet not one person from this department has called me back. It has been escalated numerous times - and still not one call or even apology. DSTV has *******ly debited HUGE amounts, because they messed up and then for a cheek, disconnect me. Then I have to spend hours on the phone speaking, spending hundreds of rands in airtime only to go through it again. I have screenshots of my balance, names and times of calling. DSTV should be paying me at this point!