This is Ren from the Shopify Support team, thanks for reaching out. I'm happy to help you out here, just let me know what I can do to assist!
Regarding our support page, we've shifted to a web callback model to help our merchants faster. To contact our support team to request a callback, first head to this link and log into your store. Once you've logged in, you'll be prompted to ask about a topic:
Doing this will present you with links to relevant documentation on our Help Center, but there will also be an option to contact us directly if you require further help:
Clicking on this button at the bottom will then present you with the different support options available:
If you don't yet have a Shopify store or are unable to login, you can choose the "Continue without logging in" option at the start and continue through the same process.