I've read online that many people are having network conectivity issues with Samsung S10 regardless of the cell phone network. I you have a warranty on your phone I would suggest returning it for a new one, its a known bug in that model of phone.
What type of phone do you have? Are you new to Public? If this is not a new plan activation: Have you tired turning the phone off and back on?If that doesn't work try turning your cellullar connection off and back on as it may just need to be reset. ...
