3 Weeks to Reactivate Service???!! - MTN Fault!

MTN Cresta has such bad service! They have suspended our services in May due to us not paying. We went to the Cresta brach and gave them our Statement showing that this has been paid. They said that they will sort this out as they can see we've paid. (this would take 2-48hrs). 4 days later we got an SMS saying that they are in the process of reactivating our services - this will take 2-24 hours. This was on the (6/6/2018). We try calling, but not getting feedback. The SMS was sent a week ago and we cant call/sms/receive calls on our phones? We are paying for a service we arent getting.