It's a scammer. They have called 3 times in the past hour and left 3 messages. They didn't say the company they were with and told me to call 855-522-9232. I googled that number and now I understand why they are calling from other numbers and telling people to call that number...
Yes, even if you try to block your caller ID it will still show if you call a toll free number (800, 844, 855, etc.) It's because a toll free number pays for the call. The idea is to get you to call so right away they have your name & phone number. The scam goes from there & even if you don't fall for it your name & number can be sold.