Pathetic Service

I done an upgrade telephonically with MTN Direct spoke to a lady named Nombuso, after receiving the new phone Samsung S6 edge on the 8th January 2016 it was over heating and loosing battery power very quickly. I then called and was advised that i can take it to any MTN store which was denied by the store. I then took it to MTN on 14th Avenue where i was helped and advised that it would be returned to the warehouse. I was called by Nombuso who told me that they would mark it as urgent and new phone delivered to me. I called in on the 12th January and a guy told me that it was scheduled to leave the warehouse and would be delivered by the Wednesday. I called the Wednesday and spoke to the Supervisor Kim Basson who explained that she would follow up and get back to me. Today the 18th January im told that it will not be resolved today and she will follow up with the repair centre tomorrow. The service received from MTN Direct is pathetic and i will not recommend anybody to use them for they are slow and always have a story. I would like this issue resolved immediately and phone delivered for i do not have a cellphone.