MTN is TRASH

I cannot receive calls on my MTN numbers. I recently moved my numbers from contract to prepaid and I cannot receive calls. I missed a telephonic interview because of this. The MTN call centre is so useless. I talked to more than 5 people and have been given codes to use but nothing seems to work. THE WORST SERVICE EVER AND THE WORST SERVICE PROVIDER. I am going to port my numbers to a service provider that can give me better service. This is absolute *******. I would never recommend MTN to anyone