Elias here with Shopify Support. Thank you for reaching out!
You can request a callback, join us in a live chat, send us an email, or message us on Twitter right from our Support page. It's worth noting that you do need to be logged in to get access to the callback option. With that said, we've also got a guide to help you with that here.
Simply log into your account on our Support page and you'll be prompted to search a topic. After you complete a search, a button to get further support will appear right under the relevant resources shared by our Help Center. By clicking on this button, you will be presented with the contact methods that I've mentioned earlier.
Let me know if this is what you're looking for?