TABLET RECEIVED INCORRECT SIM CARD SIZE

I app**** for a contract with Telkom for a Huawei Media Pad for R89.00 per month wit was delivered on 03rd of December 2015, I immediately called the call center to advise they have sent me the incorrect sim card, the call center advised I must go to my local Telkom store and change it, I advised the closest store is far away from my home they need to send me one by courier. I was promised after following up a second time that they would send me one. Not received by 15th December 2015, I took to twitter message, still no sim card was delivered, today the twitter media guy followed up and insisted they could not help me as they have no contact details of mine or the incorrect sim card details, I advised all these details are on the contract that I took out, however I did supply the details again but still no reply. I receive my bill, they are now charging me R174.20 for a contract I took out at a cost of R89.00 per month. Prior to delivery I was forced to pay the first instrumental of R89.00.<br> I no longer want this contract and want the device uplifted and my R89.00 refunded in full.