There's an FAQ thread about this, which says that in most cases you need to have three modules available and then you should private-message the admins: https://www.modulargrid.net/e/forum/posts/index/801
I myself just today released my third module ( https://www.modulargrid.net/e/other-unknown-msk-007-leapfrog-vcf ) and will shortly contact them to see if I make the grade, but I'm waiting until after I finish the other launch-related stuff because I have a lot of other places to contact first.
EDIT: And congratulations on your new module!

North Coast Synthesis Ltd. (https://northcoastsynthesis.com/ ) - fine handcrafted modules and kits