Activate a SIM card
Upon receipt, we recommend the sim card in order to get a phone number assigned. Giffgaff does not assign phone numbers until the SIM card is active so don’t look for it printed on the SIM card as you won’t find it!
If you are still not in the UK, our recommendation is to activate the sim card with just £10 of airtime credit. Airtime credit does not run out if you don’t use your mobile, so don’t be afraid of topping up even if you aren’t planning to come to the UK right away.