CONTRACT UPDATE DISPUTE

Empowered outsource solutions phoned me on behave of MTN, to perform an upgrade on my contract. We agreed on 2 phones which was a combo but they delivered 1 phone. I called MTN and they said they can't help me they will send them an email which they did on 27th January, on 31st they called me and I explained my query they said they will listen to the recording on our conversation with the consultant which will take them up to 48 hours then they will call me back. That didn't happen I called MTN again because their number is not going through. MTN tried putting me true to them but their number *** is always on voicemail and the land line is also not working. Now am stuck with one phone and that I can't use. Am so angry and disappointed because even MTN can't help me. I don't understand why they are using a call centre that has poor service and it also puts their name on the spot because I have contract with them they should be able to help because they are the one's that take my money.