Non activation

After a long battle to get MTN to deduct my payments via debit order, i went to a branch. They said they are only a franchise and cant help and revered me to a main branch at the East Rand Mall. Due to them not doing the debit order correctly i was 2 months behind. I told them that i will do a payment and then owe them a month. My phone was connected. A day later my phone was disconected. My husband went to the branch an they said the matter is now with legal and i owe them R 1377.00. My normal contract fee is R 470.00. They said i owed this amount as you pay 2 months in arrears. My husband then payed the amount on 26/11/2015. They then said that because the matter is with legal we must phone them to get it connected again. My husband asked if they cant do it as they can see it was paid. I have tried but the phone just rings and as yet my phone is still not connected. I feel it is totally unfair as i am now paying for something that is not working. And i have to pay reconnection fees each time to get my phone connected. This after they made the mistake. My hands are tied Nd the lady behind the counter just shrug her sholders and said you have a binding contract so tough......