I have gotten at least 2 calls today from this number within a half hour period.  This is not the first time, and I have no idea who this may be.

It from a comany called Bill Me
later. They call multiple time and when you call back they don't identify them selfs. The way they answer the phone is customer support what's your account number. They never leave any messeagaes on answering machines.

This co calls 8-10 times a day, and never leaves a message.  I used Bill Me Later booking a hotel due to not having my wallet on me and there was only one room left.  I paid the bill in full and on time, but they still call trying to solicit.  I have called my phone co to block the nubmer and they just change numbers.  I would not recommend using them for anything.

these idiots call at least 4times a day . never leave messages and i never answer. needs to be reported to the no call list

I have received numerous calls from them lately -- I called the number back and spoke to a representative right away.  It is Bill Me Later... and although I thought my account was paid in full (I can access it online), they said since I had changed addresses, the system created a new account.... and there was a balance on an old account I have been unable to access.  Might be worth calling to make sure you are not experiencing something similar!