suspention of phoneline

i made a payment on 5 Aug 2015 after numerous email of proof of payment send to vodacom. Eventually they recieved my proof of payment after the report was send to you my problem now is they suspended my line numerous times after i made the payment on the 5 aug 2015 according to them the payment was made on 18 nov 2015 the day they allocated the payment to my account now i must pay R 90 extra on my account for the suspention of my line and that is not fair because i made the payment as per agreement with vodacom on 5 aug 2015 the lines was suspended 10 days after the payment was made