I'm going thru this very thing now. 2 lines, one phone stolen, other doesn't work and on standby. Nothing I can do without doing a verification code. Plus, it looks like I'll lose Sero plan on my standby line now as I bought a cellphone on ebay in order to add it to the standby line. But they can't reactivate SERO even though I was initially told I could before going on standby.