Agree completely that you should get Verizon to tell you why they need your documentation. But just because they usually would require that doesn't mean they don't have good reasons for requiring it now in your case.
When I was younger and applied for a job, (30+ years ago) filling in the box on the job application for SS# was good enough. But not so today, my wife is a manager at a Fortune 500 company and all employees when hired MUST present thier actual SS card. They make a machine copy and it goes in the employees permanent file. When my daughter whose in college applied for part time jobs in California, had to show her actual SS card before they would hire her.
I'm guessing all this is a result of identity theft being so high on the list of crimes being commited today. Companies are just protecting themselves.
I also think you won't get anyone to actually verbalize the reason they would be asking to see your actual SS card. This in itself could open them up to a possible lawsuit. They will just say they need to see the card and like someone earlier said, that is their right. Sometimes they will look at the situation as, if the customer doesn't want to show the actual card, there must be a reason and it's safer to do without thier business than to get involved in something possibly "shady".
And to the OP, what if I went into a Verizon store and wanted to buy 3 smartphones and I gave them your SS# and they accepted it without question and opened up an account for me. Then after going a couple months without paying the bills I sold the phones and went to another carrier and you start getting billed for the phones I bought including ETFs, overage charges and such.
My suggestion, prove to Verizon you are who you say you are, get your phones and get on with your life. Oh, and Get a replacement SS card. You're going to need it when you retire and want to start collecting SS. But I agree, don't send in originals, physically take them into a SS office so they are never out of your possesion. The following is a copy and paste from the SS website:
All documents submitted must be either originals or copies certified by the issuing agency. We cannot accept photocopies or notarized copies of documents.
Best of luck to you whatever you decide to do, :smokingsomb: