Who called from 8622612704

In one day that person calls few times  and does not say a single word. strange and suspicious  .

Calls but never says nothing

This number calls constantly. I finally answered it. They asked to speak to me by name. I said, she isn't here right now. Who's calling? The woman said, "I'm calling to notify her about a refund program she may be eligible for. I'll call back later, and promptly hung . She sounded rushed and very nervous to get off the phone.