MTN = PATHETIC PATHETIC PATHETIC!!!

My husband works in Mozambique. He was in SA and upgraded his phone on 18/4/2015. He had to go back to MTN Brooklyn Square on 22/4/2015 because the 3G was not working. He left for Mozambique on 23/4/2015. On his arrival he discovered that his international roaming is not working. It worked perfectly before he upgraded. I went back to MTN Brooklyn Square on 24, 25, 26 &amp