suspended line

payments has been made via nedbank since july on time and for the correct amounts however I still receive text messages requesting payment and proof of payment , because my line has been suspended previously , when I make payment I go into the store immediately and ask that they fax the proof .without fail cell c suspends my line , they request a R70 for reactivation AND proof of payment AGAIN! My line was suspended 10.12.2015 , I went into the store today and queried this , the agent called the call centre and they had the nerve to request R900 , this after showing and sending proof of payment. the agent admits that my bills have been paid on time and for correct amounts , YET they still request payment of R900. its really pathetic .I have no problem with making payments but I refuse to pay every month for reactivation . id like my line to be reactivated and my name cleared as this most definitely reflects negatively against my name , which is really unfair . im really grateful for this site as they get back to me the next day however they don't resolve the issue all they do is request payment and proof of payment .this is disgusting i feel im force to get my lawyers involved.