Mtn to Worse

My sim card lost the network from the 29/11/2019.I couldn't make or receive calls.So today(3/12/19)I went to pinetwn and ask mtn agent to help me with a simple swap but she couldn't because it kept on saying "can't perform simswap at this time".Then I decided to go to mtn shop in Sanlam centre that's when one of the worker there was so rude and told me that I must do Sim swap on my own.They only help contract clients.Mind u I had already told him that I tried.I feel like porting to another network.