Registered users can use the "Support" menu at the top-right of the page to get an invite to the scuba-sites.slack.com site where there are slack channels set up for bug reports, feature requests, and general questions. You must be logged into the site to see the Slack support menu options.

For non-registered users there is a Web Contact Form available under the Support menu.

You can use the "Register" option at the top-right of the page. You will need to fill out some basic information including your email address and will need to respond to the confirmation email sent to your address before you can log in.