Hi there! This is due to a change in how the Android 8.X Operating System handles background processes. Android 8 “Oreo” now displays this information, and once the impacted applications are updated to the latest version, the usage from the Sprint Hub will drop. If you are not interested in the notification from "Sprint Hub". If you want to stop this, please go to Settings > Apps or Applications >Tap the three dots > Show System Apps > App (Sprint Hub) > Notifications> Turn Off.
S10's come with Android 9 Pie not, 8 Oreo. The fix for turning off notifications should still be the same though. I would disable the Sprint Hub if it allows you to do so on top of disabling notifications.
Hye there, @Franklyn530! Thanks for contacting us. First of all, you will need to check if your device is compatible with our service by visiting this link: https://activate.boostmobile.com/bring-your-phone?intnav=TopNav:Phones:BringYourPhone if it is, it will guide you through the process of ordering a new SIM Card and it will also let you know the SIM Model if not available in our warehouse.