Poor service for such a big and old company.

Been with mtn for 9 years but now I'm tired of the poor service. They so fast to do upgrades and debit money but can't give me proper internet service. My wifi hasn't been working for a while now, called the call centre agents 5 or more times they couldn't help. I was told go to your nearest store just for them to give me another number to call. For such an old company the service is really poor. I wouldn't recommend them to anyone.