just received one of these calls myself. I've seen this number pop uo on my caller ID in the past but before I could write the number down, the line disconnects. Today, I immediately wrote the # down before answering and getting hung up on again. Really frustrating to have to stop in the middle of something to answer a dead call!
We've been receiving phone calls from this number but when we answer, no one is ever there. I dialed the number and there is a prompt to be put on their "do not call" list. I did that. The recording said we were removed but I'll believe that if the calls actually stop.
I got a call that rang twice and then hung up. After reading the other reports I called the number back to be put on their do not call list. Hopefully the system works.
collection call, when you pick up the record your voice, and compare with the past phone calls you made on your credit cards, to see if the got the rigth number to call you in the future.