Itc wrong listing

Tel *** good day I cancelled my virgen contract in Nov 2015 virgin mobile is still debit my account sometimes 15 time at one day. I the account depart call me I told them I don't have a account with them and at the time I cancelled the contract I didn't own them a cent. I try to buy a vechile and it's decline cause virgin put me on itc even if I ask them to clear my name they still refuse I need a lettre as today that I open them nothing if if they keep on billing me. Other wise I will go to the media and sue them for bad listing unnecessary and I will also Wright an complaints to itc in connection with virgin blacklisting people wrongly at itc