Still waiting...SIM to be activated after 6 months

I bought an Apple iPad 2 in December 2014 from FNB Smart Devices. This included a SIM from VODACOM with 500mb data/month. I have had numerous calls & emails & visits to/with both FNB Smart Devices and VODACOM, and FNB keeps telling me that they are working on the problem. I have spent so much energy trying to resolve this issue but to no avail. I was fed-up two months ago, and am about to give up. Why should I pay a monthly fee for a package that FNB clearly cannot support? I am done ... FNB - I would like to return the device and be reimbursed for the debit order you charged since December 2014- you clearly cannot provide this service, do not pretend to do so. Get the correct B2B agreement for support of devices YOU sell. Both you and VODACOM have not lived uo to your deal sold to me.