I just received my iphone 4 today in the mail for Verizon except I purchased it via upgrade on a different number. When I activated it, it was activated to that number but I want to use it on a different one on my account.
The employee shouldn't have charged you the $10 to switch numbers. They will do it for free. I suggest you go back to the store and talk to the manager about getting a refund. $10 is $10 IMO.