I have received 2 calls at my office within the last 10 days from 407-475-4200. The caller ID says Staples. When I answer, the caller hangs up. I called the number to ask to be removed from their calling list and my call was transferred to voice mail. We'll see where that goes...
I just called the number back like you suggested, hit 0 for the operator and she could not help me. You would have to know your rep's name and request from that person to have you removed from a list. Didn't work for me.
I just checked my message from this number and it was silence for about 30 seconds and then "SON OF A [***]" before a hang up. NIce...if this was from Staples.