I get calls frequently by this number, but I usually don't answer and of course they never leave a message. I finally answered today and it was an automated call regarding renewing warranties on my 8 year old car, so I just hung up. I didn't stay on the call until the end. Blocking this caller.
I answered a call from this number (773) 570-8020 from supposedly a Service Call for our Mercedez Benz. It was a real person to and not some machine. He said he wanted to talk to my dad about the warranty about to expire. Duh, if he was legit and was looking at the warranty contract he would know that it doesn't belong to my dad. For theives he's really stupid.