It showed up as "Private Caller" on my caller id. I didn't answer.

Calls constantly several hours apart until I finally picked it up to see who it was.  It was a machine responding with Press 1 if you are XXXXXX, press 2 if you need to wait to get that person, etcetera.   It had a message about a business matter (no other info, very vague).  I pressed 1 so that I could give them a piece of my mind about illegal calls made and answered by machines (my state doesn't allow that).  It then responded with all representatives are busy and to call this number 425-643-2613.   I hope that pressing "1" was not some scam and they use that to put some sort of charge on my phone bill.  In retrospect, it might have been better not to press any number at all in case they use that as an excuse to scam some charge onto my phone bill.

They call my Cell phone all ours of the day and night and want me to press one to get to take to some one.

They called me today. It's a collection agency as "goat" said above. It was just a vague recording from Redmond, WA claiming they wanted to speak with me. I hung up. I already know I owe money to collection agencies. I don't need them to harass me...

Called me and I could tell that there was a person on the other end listening but not responding - I called the number back and it rang several times but never answered.

If I were a business and they were working for me I would fire them - Atleast when collections are done by people you can get a little compassion but from a machine - I will never pay whomever the represent - to be honest I know I owe no one so it has to be a scam in my case

My super secret sources say that it is Merchants Credit Bellevue Washington
Merchants Credit Association. P.O. Box 7416 Bellevue, WA 98008. (425) 643-2613 (800) 755-1107. OFFICE HOURS: Monday, Wednesday: 8:00-5:30 ...
Website: www.merchantscredit.com