Views: 1,760 Giffgaff.com Login Activate SIM: How to Activate your giffgaff SIM “You can activate your Giffgaff SIM by login into the webpage www.giffgaff.com/activate and then Enter the 6-character activation code printed on the SIM … Continue reading Giffgaff.com Login Activate SIM : How to Activate your giffgaff SIM