BAD SERVICE & LACK OF COMMUNICATION

I had bad service in a number of occasions , I cant wait for my contract to come to an end so I can cut ties with them & will never recommend any of my family/friends because their processes & procedures are rather USELESS. I took in my pone for repairs , they booked it in , quote came through , I paid when I delivered it to MTN with the copy of the quote together with my POP. This was two week ago . I have been calling MTN for an update , spoke to various people telling me different stories , this has been by far the worst experience of my life, sent various emails to MTN/service provider SSS cellular for updates no one is bothering to come back to me , their systems are not aligning or updated because WOW the call centre agents clearly knows nothing , they keep providing me with old info that a quote was sent , I fail to understand how is it not picked up on the system that payment was made , how far is the repairing stage , what still needs to take place , ETA of my phone , they know NOTHING. I need to know where is my phone , update , something its been HELL waiting for something thats already been paid for an update to know whats happening will be appreciated at this stage. IMEI number ***