The worst service ever

<p>I app**** for an upgrade in feb this year. I recieved my new device 02 March 17. This was an iphone 6s. I was not happy with the device. I wanted something bigger. A iphone 6splus. So the very next day 03 March i returned the phone personally to the innovation centre head office constancia. They eventually accepted the device, then gave me a number that will be used to trace the phone and they said a sales consultant will contact me to change everything. God forbid . I called i emailed. I went to the mtn stores. No body can assist me. A debit order went of my account for a device i dont have. I think the sales consultant that assisted me in the begining has disapeard from mtn because there is just no contact details. I dont know what to do any more. I have prrof of emails sent and no response or if there is a response they tell you to cqll repair centre. Its simply the worst service ever. My alternate number is ********** 043.</p>