[Koha] Conference registration, who to contact for help?

Good morning, I registered for the virtual conference and received a confirmation from the Google from. However, I never received a payment link, or materials indicating how to attend the conference. On my end, the Koha US site appears to be down at the moment. Although this isn't a technical question, I'm writing in hopes someone might know of the proper avenue to get help with conference registration follow-up. Thank you! Tasha Bales Enterprise Services http://isesi.web.boeing.com/