And you shouldn't need a new SIM for 5G. It was one of the reasons that everyone who had a SIM issued before December 2017 got a new one recently - so that new services could be added without having to send a new one again.
********************************** I work for Virgin Media - but all opinions posted here are my own
Thanks Ben. I’m not with Virgin Mobile but used to (still be the other three VM services). I’ve spent a few years with Three due to their USA roaming but not much chance of using it anytime soon! I might give Virgin Mobile another go.