Horrible service (failure to disclose full information)

Multichoice called me for a new contract for DSTV internet which i accepeted and i was told that i am going to pay R499+R99(for a new explora) of which i agreed,Then to my suprise now i received an sms stating that i am going to pay R1038 and i called customer service immediately so that they can explain to me how did it got there so they guy that assisted me he mentioned a lot of charges that i was not told about. The other day i called because my Pvr was not activated I spoke to Mmathabo molowane and she activated it to me and said its not going to charge me more because i am on contract and she did disclose the amount and i asked her how much am i going to pay month end she said R504.So this extra charges where do they come from because i ma not going to pay the amount that i was not told about and please note that this also going to affect my Itc because it will reflect as non payment so someone needs to fix this mess asap or ill escalate it further and as for Dumusani Mkho**** the person who did this application he must account to this mess because it looks like he added things that i dont know. So please fix this whole thing or i rather cancel because i was misled by dsvt agents.