Dstv wants me to pay for broken dstv

August our decorder broke and we bought a new decorder, after we called dstv and they helped us connect the new decorder and we told them to disconnect the old one as dstv polokwane(grobler street ) told us it will never work. Ok month end September when we where supposed to pay, it said we owed 900.we called dstv and they said we have two decorder, after the lady told us she will disconnect the services of ther broken device Nd we must pay for one decorder. My problem is this month again we are told we have two decorders which means the moment we put our phones down sdtv consultants tony escalate our matter they move to another cotomer as long as they get money. Yesterday i spoke to a consultant called Yolanda around 3 during the day she told me my matter will be resolved by end of the day yesterday nothing happened,no one called and i called again around 7 and the consultant told us to pay 600 as there is no proof that we called and the team leader is not in. What the point of having consultant who are rude and lie to us. Where can o take this decorder to prove to you it's not working caus you busy saying it's working? And o asked the consultant to disconnect all my decorders as i don't feel like continuing with dstv and she told she can't.