I have been receiving call repeatedly with threats of lawsuit. In the past I asked for written documentation, which they have failed to send. They have contacted family members who do not live with me. Very abusive messages. When I have talked to them, they are verbally abusive. I do n't like to respond b/c I do n't want to give personal information over the phone. I ca n't clearly understand the company they are calling from, which makes me more suspicious. I would send a letter asking the calls to cease, but I do n't want to let these people scam me. I am very scared. The numbers they have called me from are ( XXXX ) XXXX, ( XXXX ) XXXX, ( XXXX ) XXXX, ( XXXX ) XXXX.