Thanks!
My wife and I have 2 basic cell phones-hers has messaging ($10/month). Mine doesn't. My phone has message blocking because I would get nuisance messages sent to my phone and I would be getting charged 20 cents for the privilege of receiving each of them! The access code system for two step verification worked fine with my wife's cell phone. But, when listing my cell phone as a backup, the access code never came through, since I have message blocking, so I have to either pay $10 a month for messaging or pay 20 cents for each message sent or received through Verizon in order to use my cell phone with two step verification. Doing the latter subjects me once again to unsolicited junk messages which I have to pay for. In either case, the criminals have won, making what once was such an easy thing to do, now becomes a genuine, expensive PITA!!