Misinformed when upgrading contract

I wanted to transfer a cellphone contract from someone else's name into mine & upgrade at the same time. I was told that it was not possible to transfer it due to the strike & no further explanation was given. I was encouraged to upgrade now & do the transfer later. The consultant asked a series of vague questions for the credit vetting process & entered in the wrong gross income amount despite us trying to correct him. The consultant checked what phone I had before, opened the box of the new phone & everything seemed fine. I later realised that I had a micro SIM but needed a nano SIM. I went back to the store & they were closed. I then went to Nicholway & a very helpful lady explained that they were out of stock of nano SIMs. I am very disappointed because now I have an iPhone that cannot be switched on without a SIM card, I was not able to transfer the contract & now I have to run around Jhb trying to find a nano SIM tomorrow. I work during the week and won't have time for this nonsense until next weekend.The OBF warranty only lasts 7 days&by then I won't even know if my phone functions. Had I known this at the outset, I would have switched service providers but now I'm locked in