Explore vouchers can only be activated on the desktop version: https://explore.imray.com
If you are a new customer, you will need to sign up.
You will be prompted to do this when you land on the address above.
If you already have an Imray account, go to Sign in.
At the bottom left hand of the screen will advise that you're in a free trial.
> Click Join
> Select Annual and click Join Explore with Imray at the bottom
You *must* input credit card details even if you plan to cancel or remove those details later
> You will land on the Confirm your membership screen
Below the card number field is a discount code field.
> This is where you will input your voucher code for your complimentary * (eg.) 12 month subscription
> Click Join. You will then not be charged.