@nichole1991 here's the official announcement that giffgaff made about the Outage and refunds please read
Be on the giffgaff site when started on the compo updated >> https://community.giffgaff.com/t5/Welcome-News/bd-p/Welcome_guidelines
And will probably receive a e-mail and a text on this as well when been started to can claim.
How do we claim our compo for the recent problem
You should get an email this week. You can opt for charity or airtime credit.