you try to call back and they're busy.The number displays but unknown...

I answered and they did say they were from Ch-something and were asking if I wanted my free sample of steak. I said, no thank you and she was polite and hung up.

Ditto!

I don't recall the name of the call centre calling, CH-something-or-other.  They wanted to confirm that I had received my free sample of meat.  I said no and that I didn't want to either.  They hung up rather quickly.  Had I said yes, they would have attemped to arrange the drop off of free meat (a half-pound of ground beef) by two very-high pressure sales people who would want me to sign a contract for 6 months of their meat deliveries before they would leave.

Me too.  Don't know who it is, did not answer

got phone call from this number about 5 mins ago. did not answer.