bad service from MTN

Hi i want to lodge a complain for your consultants at East Rand mall shop for refusing to assist me because i did not provide proof of purchase for the phone i was trying to send for repairs and to my knowledge since i bought the phone on contract and contract is still active which means the consultant (Mpho) refused to assist me and i called customer so they could clarify this for me while i was still at the shop and the consultant on the 808 number (boniswa) explained to me that shop can get the proof of purchase from the system since its contract phone but then i told her the lady who is at the shop is refusing to assist and also refused to speak to the consultant on the phone who was try to tell her how to get proof of purchase from the system but she refused to speak to her in front of my eyes and told me and the consultant that we can not tell her how to do her JOB and she knows the procedure of the company that i need to provide proof of purchurse before she could assist me then i asked her to call her manager but also the manager didn't assist or care to explain on what i need to do and sadly i didn't get any assistance and when i told her i will escalate on what has happened i asked for her name and the manager but they refused and they were not wearing any name badges which seems odd in the first place, she then tried to defuse the situation since i told her i will escalate this to customer care and tried to send an email to me with proof of purchase which she didn't explain in the first place but just refused to assist or listen to me on what i needed from her. it has been more than 3 months now i have been trying to send this phone back for repairs but not getting any assistance. I don't know how will i get to send the phone back to repairs now since i still have no proof of purchase and i don't get time since i work Monday to Sunday 8:00 to 17:00.

and very strange that she can be able to send me an email with proof of purchase but not able to get it for the system, she gave me an attitude that i even thought maybe am using the wrong network i need to change it since the people you employ for servicing customer are not not trained or have to bring their bad moods at the offices where they need to assist customer with a smile. Name of the Shop East rand Mall MTN Direct shop and the name of the consultant who didn't assist me but serviced me with bad experience as the customer and the Manager of the shop who did not also assist me or tried to assist me but if this was a white person am sure they were going to assist everything they could and was not going to be sent back home without any help..please assist and deal with her to provide an apology and take my phone for repairs.