Check the most common causes for delay below. If they don’t help, please contact us.
Did you activate your Three SIM?
Your new Three SIM must be activated by 17:00 on the last working day before your transfer date.
If you’ve not activated it on time, don’t worry. Follow these steps and the transfer will be completed within 1 working day. Or 2 working days if done after 17:00, over the weekend, or on a Bank Holiday.
To activate your new Three SIM, put it into your device and switch it on.
When you see signal bars, that’s your SIM activated. You might need to switch Wi-Fi off to see the signal bars.
Once your SIM is active, you can use it immediately. Or you can go back to your old network SIM until the transfer is completed.
If you activated your SIM on time, but your number’s still not been transferred, please contact us.
Are you abroad?
You must be connected to the Three network in the UK to complete the transfer. If you’re abroad when the transfer is scheduled, it’ll be delayed until you return to the UK.
Please note: If your PAC expires during this time, you’ll need to get a new one and submit a new switching request.