As a European (german speaking) I am not a Verizon customer, but have bought a locked Verizon Iphone 4s. The Customer Service speaks only with customers with a phone number!!! No phone number no chance.
Is this always the case with American companies? I wish really that only Verizon has such a lousy customer service ...
Recommendation of the Verizon customer support: discard iPhone!! 
What an ecological thinking. I offered by paying them to unlock it, no change ...
Does anyone have any idea how to progress? In March I will stay in Florida
Thanks for the answers
Alex