Disgusting service from MTN

I have been a client of MTN for as long as i can remember having a cell phone. anyway, i qualified for an upgrade in March 2016 and gladly went to the MTN EAstgate Mall JHB branch to fetch my Galaxy Note 5. I activated the fingerprint scanning device and 3 weeks later, i got a message that the cellphone doesn't recognise my fingerprint! this meant that effectively MTN locked me out of a premium service. I took the device back to MTN Eastgate and was told either i take it back to Samsung or hand it in for repairs. The technician at Eastgate, Sheldon, Was incredibly helpful though. The next day i dropped the device off at Bedfordview MTN for repairs and a month later my phone was delivered - this time with another problem, my email from gmail is not registered on this device. I was livid! we went on to gmail to have the email addresses linked to my cell phone number *** linked, we changed the passwords in gmail and then tried it on the device and every time the same stupid error message occured - please enter the correct email address that was synched to this device. I have not had such bad service in years from such a company ever!! on 22 april i took the device back to the company at Eastgate and i asked for the MTN manager. She immediately took me to the same technician, Sheldon, and he attempted the various gmail addresses with the same error being delivered by the device. He agreed with me that the phone should be returned to MTN and that a new device be given to me. The manager then agreed that my phone be sent in for a warranty assessment and i said, why on earth is this only being done now?? i told her i will be away from the week of 25 to 30 april overseas and she said no by tuesday 26th april, i would get an answer. i landed last night and checked my messages, MTN has never even bothered to contact me? Is this what you call service? i was billed R895 for a phone that was more in MTN's care than in my own, a brand new phone??? this is absolutely peutrid and absolutely disgusting for such a long serving customer that you have. My ID is ***, how absolutely disgusting! i will definitely not be recommending your client service to anyone at all, you simply disgust me!