Who called from 2018063161

Called my mothers house asking for me. When she said I wasn't there he hung up. Paid for a reverse lookup and it comes up as PCR. waste of $5.

Me---"Hello"
Caller---"May I speak with _______ _______"
Me---"He's not here.. He's at work"
Caller---"Well where does he work" (in a threatening tone)
Me---"Who is this?"
Caller---"This is Mark... where does he work?"
Me---"Mark who?  Do I know you?"
Caller---"Mark Williams..."
Me---Who is this and why are you calling me?
Caller---"My name is Mark Williams from Pioneer in New York...I take it you're going to refuse to give me that information?"
Me---"What is this about?  Who are you... I'm not going to give you any information until you tell me what this is about!"
Caller---HANGS UP!!

whoever this is calls myhouse constantly everyday at 8am and 5 or 6 more times until 9pm . they leave no message and hang up

This company is Pioneer Credit Recovery.  Their name says it all, they are bill collector's.  I talked to Cory.  He was very pleasant and said they would remove my phone number from their files.  We'll see.

I'm replying to my own message, but I forgot to list their other phone #877-907-1820. Sorry.