bad attitude from consultant

I bought my dstv decoder at jet mart on the 9th of December 2015 and the dish was installed on the 10th,i was told to contact the call centre for activation, which I did and I asked the consultant to activate my new decoder so I will have to decoders under my account of which I will pay R99 for each every month. The agent then activated my decoder and asked me to pay 45.60 within 48hours,which I did pay the following day at pep stores. I asked the lady who was helping with the activation if I only have to pay the R45.60 only and she said yes and that they will debit R99for each decoder month end so I don't have to pay 99 now. Today 25th December my subscription is deactivated. I contacted the call centre and the lady I spoke to was very rude and told me that my account was cut off and I have to pay R67,why should I pay again because I was told to pay that 45.60 so whats the 67 for.she said for them to reconnect my decoder I must pay.why was my decoder disconnected in the first place,its not even the 28th yet.and I was not told about the 67rand in the beginning.on the self service it shows that I owe R312 OR MORE.Whats that for.please someone must explain this.