SIM & Network Troubleshooting
By Andy and 1 other2 authors10 articles
Traffic Flow Policy
Policy to manage illegitimate SMS usage
Emergency Alerts
Useful Network Shortcodes
Understanding 999 BSL and Emergency Video Relay Service (EVRS)
Understanding why you have been charged for giffgaff-to-giffgaff calls or texts
Network & Service Troubleshooting
Where to find your SIM serial number
The default PIN for your giffgaff SIM
Checking for service updates