Ted here from Shopify, thanks for reaching out to us!
I'm sorry to hear that you've been unable to contact our support. To help our merchants receive a faster response, we have temporarily moved our phone conversations to online chats, email, Twitter and Facebook support. You should be able to contact our live chat, email and Twitter support via our Help Centre here or our Facebook support is available here anytime 24/7. To access our support via the help centre, I have created a short example of how to access our support here. If you're unable to sign in as a merchant, please try and log in as a guest as shown in the video example instead and our staff can authenticate the account later if needed.
If there is anything else I can help you with, please let me know, I'm happy to help here too if you would prefer!