I took mine down to an SC and luckily was able to get a tech to look at it and I don't remember what he did but it was able to magically create a new phone key (the old one still can't be deleted from the vehicle but as long as I can use the paak, I'm not really going to let that bother me too much)
I have the EXACT same issue on my 2 wks old R1T. First call wasn't much help, they or the local service center were supposed to call me yesterday but I got no call so I stopped in to the SC. The guy was nice enough and transparent that they had a huge backlog and the best he could do was have...