Deeply unhappy with CASCADES MTN

Bought into a new contract in May 2022. First phone was faulty and had to be replaced two days in. Second phone i have endless hassles. Dropped phone calls, two to three times a day i can't answer a call or when i return the calk, the person on the other side can't hear me. I have to restart the phone 2-3 times a day. 1 day out of 7 i wont be able to make a call because the user isn't recognized on the network. I have had the SIM changed twice by MTN who cannot understand what the problem is. Next thing i have to bring the phone in to have it replaced, as per MTN. Except now its not going to be replaced, its going to be sent off for repair. By now, the time, money and businessbu have lost due to this phone is insane, never mind the stress and back and forth to the MTN shop. I live 45 minutes away. Oh, and i have to provide a replacement phone and it takes 5 hours of my life to transfer. And ill be charged for the repair no doubt. If i could leave this phone provider and never see their yellow sign again it would be a good day.