Hello @rowsi. Thanks for using our gear. Certainly Thomann can order that cab for you. Our distributor in Denmark has stock. There is also Bass Buddah in Denmark and Bass Direct in the UK that should have stock. Also Andertons in the UK.
Our distributor does have the new NC-112T cabs in there stock as well. But sounds like the BA12-3SLT will be a good match with what you have. I'm happy to assist with more detail if needed.
Thanks again.
Thank you very much for your reply. I didn't know about bass buddha, thats at least a second shop in the EU. UK shops are out of the equation, as the UK left the EU a few months ago. I'm not sure if customs and other stuff is already up and running, so UK is unattractive from a customer perspective.
I believe I need to reiterate my first post: I do believe that Thomann would gladly order whatever I wished. However, when I order something through them thats not listed, their return policy doesn't apply. Therefore, if for whatever reason I dislike a cab I ordered (haha, like I'd dislike Genzler stuff!), I wouldn't be able to return it. Thats my main gripe with Thomann listing so few Genzler items. That and that I only get to know that other stuff is available through moaning on a forum.

