Very disappointed by multichoice

Hi my name is dineo I am not happy at with the service they providing, I bought a decoder via contract that was said I was gonna pay R119 , however when the technicians arrive it’s a different story apparently I also have to pay extra R99 and also a R23 wich I was never told about they are not disclosing every information regarding the contract I am not happy with them and also multichoice for having a contract was th such people, and again when I spoke to consultant from multichoice about the extras the consultant said why don’t I return the decoder then , multichoice is this the way your consultants are solving customers problems? I am very disappointed with multichoice and this on air company, how can you work with such people