Swim swap

Good day,<br> <br> I lost my phone on the 15th September and when I wanted to do my swim swap with MTN, they told me they can't because I have a contract airtime with (Edcon)Autopage. Autopage(Edcon) sent me a fax to go to my service provider given them authority to do the swim swap but MTN still couldn't help me. On the 23rd September I received a call telling me to deposit R140, they will send me the swim card. Told them I was never told about this when I took the contract so I want to cancel it. They said they cancelled, I must wait for 48hours but still today, I am not back on contract yet. I can't perform my swim swap and it has been 21days trying to do the swim swap and no luck and I have asked the, to cancel the contract and be back on prepaid but am still on contract. Please help me