My S20 5G updated overnight, and now I can't call other Virgin Mobile numbers, without getting "you have dialled an incorrect number" message. They can call me, no problem, and I can text them, but just no voice call from me!! Other non Virgin numbers appear fine..
Thanks for posting and welcome to the community. My apologies for the delayed reply and the calling issue.
Have you got this sorted since posting?
If not, is it all Virgin Mobile numbers or every other network that you can't dial/get this error message? Have you got WiFi calling enabled, if so, could you disable it and then try it to see if it fixes?