Where/who to contact for sponsorship info?

I was rather disappointed with how un-professional it was handle 2 weeks ago as I was not approached at all - no one gave me any warning, and the ban allows me zero access to my account. I can't even do anything with it, not check any private messages, no recourse to "contact" admin. I can't even "log off" my account so that I can at least "browse" the forum.

Although I've been posting R&D and work-in-progress photos about the parts I'm making, I didn't even have products ready to sell it. I still don't - yet. There is a fine difference between sharing information and "spamming" the forum. This has always been an issue with forums even 20 years ago.