Homechoice - harassment to another level with *********** staff

The worst harassment that one can experience from a call center. I have asked the staff and line managers to remove my number from their records, seeing that I NEVER had or WILL ever apply for a homechoice account. After the 11th attempt no luck and the support level from the call center staff is shocking. I have sent a mail to every email address that I could find on the web and I still get calls from homechoice. My advise do not support them, I cant even imagine what they are like when you have an account with them.