Business Everything You Need To Know About Giffgaff: FAQs Included!Akarsh ShekharNovember 1, 2020November 1, 2020 by Akarsh ShekharNovember 1, 2020November 1, 2020 Giffgaff is a mobile telephone network running as a Mobile Virtual Network Operator (MVNO) using O2’s British network. FAQs and Things To Know About Giffgaff ...