@LeiCui here in the community, we are just customers like you , but we try to help
Are you using Android or iPhone?
At which point you got to? did you get the QR code and did you install the eSIM profile? If you got pass there, then try a device reboot first.
If still does not work, try to Reset All networks
if issue persists, please open a ticket with Support via Private message for further assistance
**Monitor your Community inbox (envelope icon on top right) after the ticket is opened. CS Agent will reply to you there
