This is a collection agency called "First Source Advantage" in Buffalo, NY. Their system called my cell phone several times at 5 & 6 in the morning, despite their records indicating my correct California address. prior to this last call, when I did answer, if I was lucky for the automated system to "transfer me to an agent", I would either be directly hung up on, or the agent would 'verify' my birthdate and then hang up. This time the agent identified himself as a "third Party Mediator" (as he said he didn't like being called a "Debt Collector").  I aired my complaints about the previous calls, as well as the times of calling.