Sim Card

I decided to take an upgrade with Cell C with my current number that I am using and I was happy with everything but now I went to one of the Cell C stores to activate my new Sim Card that I did not lose. If i received a Sim that is not activated it is not my responsibility to pay for the activation of the Sim Card. The only time I am responsible for that it is when i have lost the Sim Card myself. Cell C have already paid for the Sim Card because by the end of this coming month I will be paying for my first instalment on the phone. Can i have my R147 back before I return the phone back because I still have 5 more days to exercise my right.