Extremely bad service

Gave in my P20 to have the screen repaired 6 weeks ago at MTN Mimosa Mall.I was assured that I will have my phone back in 5 working days. I had do go to the branch every week as they didn't answer their phone and I received no feedback from the branch. Every time I visited the branch I was promised that my phone is on its way. Needless to say, yesterday after 6 weeks I was told that the were finally able to locate my phone as it was taken to the wrong warehouse and that I will only get it back next year!!!! Really??? Paying thru my neck for a phone I don't have. I have n=been a client of MTN for 22 years, still have my original number. will not renew my contract again. ENQUIRY REFERENCE NUMBER ********** 1 ENQUIRY REFERENCE NUMBER ********** 6 Have 2 enquiry numbers since yesterday, I haven't heard anything from them!!!!!