Phone cut off

My account was moved from Nahua Mobile last year due to them closing down and selling their subscribers on Cell C to Autopage. Since then we did not get any bills and they did not take their money as they should have. Last week they send me an SMS with a huge amount outstanding that needed to be paid immediately. The fault was on their side and now my phone is cut off due to that. I am going to loose my benifits for this month and now have to pay all that at once. There is even a reconnection fee. I will pay the account, but don't think it is fair to me. I am going to loose my minutes,data and sms's now because of their mistake. I will not pay the reconnection fee and feel that I should be credited for the time that my phone is useless now and for the benefits that I am going to loose at the end of this month.