Damaged Device

I bought a Sony Xperia C4 I.M.E.I.: *** on the 7th of January at Vodacom Killarney Mall and on the 12th of January I went to Vodacom Newtown Junction Mall to buy the SIM card because the one I had was big for the phone I bought. The consultant at Vodacom Newtown Mall decided to cut the SIM crad I had to make it fit the phone. She then inserted the SIM card into the phone and the phone was working. The phone started freezing a lot after a week and few days. On the 22nd of January it switched off while the battery was not flat. It didnt switch on even after been charged and on the 24th of January I took it back to Vodacom Killarney Mall to be checked. The Technician adviced me to take it for repairs at Vodacom Sandton Mall repairs or Vodacom Eastgate Mall repairs. On the 26th of January I booked in the phone with job number ***1. The consultant who assisted me removed the SIM crad from the phone to book it in. Few days later phone was brought back and it was not repaired, I returned it the next day. It came back and I was told it is B.E.R due to physical abuse on SIM Reader. I asked them to check the phone again because I did not bring it for that. Voadacom damaged.