Hi Richard, thank you for getting back to us.
If you go into the network settings on your handset ( Network and Internet
SIMs
Available mobile network settings) is your mobile data showing as turned on or off?
What is showing in your 'Network' and 'Preferred network' settings? Are you showing as Virgin Mobile, and are all types of preferred network showing? (2g-5g)
All the best.
Molly