Bad service and eritating calls cant get fact straight

I've been telling them many time that I dont ow Netstar they ask me to rent proof I did to the fax number and also to email ********** but still they keep on phoning me. This is very irritating as I know that I dont ow any one. I take my credit record very serous. They phone any time which is not right you can't sleep because of something you dont know. Sometimes they phone and cut the call. *** my contact ***