Ordnance Survey Discount Codes

Yep, that did the trick. Thanks :) (heat added, of course :) )

There isn't an option specifically to do this. However if you log in to your account, add the 1 month Premium subscription (not the £2.99 auto renewal option) to your basket, enter the code and checkout, it adds 2 months to your premium expiry date.

"This will also extend your subscription by 2 months if you already have one, again for free." Do you know how to do this? I can't see the option for extending my subscription.

Thanks OP worth a look for £00.00

There is and it's fine for printing out maps to take with you. I prefer these OS maps however when out in the field as you can plot routes and their app works well on the phone for GPS.