Keeps calling and hanging up. Occurs more than once a day.

Won't stop calling and hanging up as well. This caller calls right after another 425-250 number.

This guy called Donaldson or something like that call my contact number from my website and left a message in the general mailbox, request me to call back because he has some questions about my online jewelry store. Do any of your happens to be online store owners and that's how he got your number? Thanks!

It's a website marketing company that wants to offer their marketing services for your online business.  Typical kind of sales call for a business, and if you have an online business you're going to get these types of calls.  I've had several that haven't left messages, but some have. They're always very nice when they call.  But so far I don't know the name of their business.  Might be good marketing for them if they'd find this webpage and post something about who they are and what services they offer to online busineses.