Make sure your card is active and your cellphone/gadget can receive SMS

One-time Secret Code via SMS is only valid for 5 minutes.

Enter the code you received in the form to fill in immediately

ICCID is the 20 digits on the back of your Tri card

You only need to enter the last 4 digits

For iPhone and iPad users,you can find ICCID by selecting Settings > General > About > ICCID