This site does not block calls or contact anyone on your behalf. Don't answer unknown numbers or suspicious names that show in your caller ID. Block these calls. From other posts, it looks like "Arnold Scott" is debt collector, or more accurately a phony debt collector. He wants to scare and intimidate you into to paying a debt you do not owe. Since he is a crook, he will not listen to requests to stop calling.
Here is some info for you:
http://800notes.com/arts/harassing-calls-from ... ou-need-to-know