joannebrown1979
once a replacement sim regains a signal, a barring of services is usually still present
(only a call to 443 plus a few free shortcode numbers will work)
Data won't work either so you must be connecting to a WiFi source
The bar is usually removed automatically within 12 hours
If it isn't, contact an agent to remove the bar manually
https://support2.giffgaff.com/app/ask/SIM-and-number/Activating-my-replacement-SIM/form/
(if you've discarded the activation code just put in 6 zero,s)
Replies are found here
Http://giffgaff.com/support/questions