It worked for me
Here is what happened (and how I got the credit AFTER I already preordered my phone)...
I posted the message at work and then called Verizon on my way home. The first lady I talked to had not heard of the code and put me on hold for about 8 minutes. Then she told me she had talked to her supervisor who said I could not use the code as "it was on Android Forums". She didn't seem to understand what she was telling me and I decided it was easier to hang up and call someone else.
I called back and confirmed that the code worked and that I could actually cancel my preorder and then buy it again with the code. She told me all I had to do was reject the FedEx shipment and then reorder the phone after the order had been canceled. I tried to explain how dumb that sounded and how it would ultimately cost them more money to have to ship it again. I asked to talk to her supervisor and she told me that she saw I just talked to a supervisor who said no. I told her that I had not been the one to talk to the supervisor and asked to talk to him.
I explained the logic of my point to him and he explained to me that they use the code to track how effective the code was in driving sales. I said I understood his point of view but it didn't make sense to have to cancel it, charge them more money, and then reorder the phone just to track the code. He still said no. I kept persisting though and explained to him that I have been a customer for years (since about 1999) and asked if he could just do it. ... long pause... "Ok, we can make this one time exception, blah blah." "Thank you. Blah blah" Click.
So I got the $30 credit applied to my account and all is good.
