I finally got in touch with Claus Desler, turns out he has just had a new addition to his household so he is understandably busy.
Turns out he is satisfied with the MorphOS hardware he has, but wants to purchase a license for it hopefully with any donations he might receive for the next revision of Cinnamon Writer he is prepping.
I'll send him a donation soon, but I'd like to pay for the license as well, but don't know how to go about doing that as the registration is completed via regtool.

Any ideas guys?