Angry MTN customer

I dd an upgrade on *** with mtn n received wrong package.. took it back 2 mtn store n dey gave a nr to call 4 cancellation n assist with the correct package i wanted.. called Retantion department and spoke Selaelo who said he will get back 2 me without explaining what i should do n i waited 2day.. called again and spoke to Phumzile Masinga and she said she will call me as soon as parcel was rec at the warehouse and sent me an e-mail promising they will fix the problem.. i waited for almost 2 weeks with no data but the bill 2 pay.. called again and spoke to phumzile again who said i should hold she wants 2 check with the line manager n i was holding for almost an hour and she dropped the call on my ear. Never bothered to phone back... i called again and spoke to kabelo who was nice on the phone n explained that she will call after 3days as they sent urgent 2 get feedback from the warehouse with the IRMS number... its almost 3weeks with me waiting for data and i bill to pay.... Retantions department is very lazy esp with people like phumzile and selaelo working there... MTN i will never reccomend someone to use it.. poor service received..... my e-mail adress ***