Vodacom is ****

I have been using a vodacom number on contract for 8 years Vodacom contract goes in arrears and vodacom moves it to prepaid. They give me an amount to pay.i pay the amount and now they permanently delete my number without even asking me if i wanted the number. Really inconsiderate and shows why customers are moving away from a piece of **** network.i even had airtime on my number.i understood that i was in arrears but it has been settled according to the amount that was provided by Vodacom. Main reason i want my number on prepaid and will move away from vodacom via port. Once they receive money they completely disregard the customer.