Does anyone know who's phone number this is and details about this.

I got this call and don't know who's number it is, no name shows up.

I called back and it gives you the option to be added to their do not call list.

called but left no vm

It's a scam

Called me; I didn't answer, left no VM. Returned call; it was for some reward/rebate/gift card thing. Spam.

called, didn't answer, no vm.

didn't answer, didn't leave vm