Cal here from Shopify, thanks for reaching out to us. I'm sorry to hear that you've struggled to contact our live support.
You can contact our live chat team here, and if you're having trouble authenticating yourself I'd suggest using this method of contacting support without logging in to your store. The live support agents can then manually authenticate you.
Alternatively, if I'm able to help you here I'll do my best to assist! Let me know your thoughts.