Hi Dave,
There is no promo code at present – apologies.
You can signup to the mailing list during the registration process, as well as during the checkout process (I think).
Our site has been migrating from one host to another, and whilst most migration issues have been fixed, one or two are still awaiting a fix. You can still place orders on-line, but if for some reason you are unable to get onto the mailing list, let us know by sending an email to information@arceurotrade.co.uk, and a member of our team will try to assist.
Ketan at ARC