Mtn bad service

I'm extremely disappointed in Mtn I took my phone in for repairs 4months into a contract it’s been 4months since and no bother to give feedback I’ve been paying for a service that I’m not receiving back it’s frustrating you never get to speak to a manager to escalate the matter logged a complain with head office no one bothered to respond.what a terrible service to get from a business dealing with communication.can wait to get out of this 3 year contract