Contract Upgrade

I have been a customer of MTN since 2009 and never had any reason to complain. My current contract expires in 27 June 2015 which is taken with Altech Auto page. It is a MTN Anytime 350 which comes with 350 airtime 350mb Data and 50 SMS. I decided to upgrade in 3 months before my current contract expires on the 6 March 2015 and I was inform by service consultant at Altech auto page that my new contract will kick in, in July 2015 which is My MTN Choice 100 which includes 100 anytime minutes 200 SMS 300mb Data after old contract has expired but to my surprise a week after taking delivery of my new device they migrated it \early"hence I pay the new subscription which is R549 as oppose to R460. When I visited the store on the 17 March 2015 to enquire about this they told me that MTN has sent an email advising that they have migrated 23000 MTN and Cell C customer and should not log a fault. I was not even notified by a SMS nor email about this problem by MTN which is poor customer service. I then returned to the store on the 20 March 2015 to see if there was any changes. I spoke to the Manager of Mount Edgecombe branch and said that he will get back to me but no feedback received."""