When you visit http://matchateahub.com/ you'll get a Shopify error page.
This means there is indeed a Shopify store connected to that domain.
The name of the store is https://matchateahub.myshopify.com/
When you try to enter the admin at https://matchateahub.myshopify.com/admin there is a more useful error page:
I'd suggest you do what it says: contact support and try to resolve the issue.
Here are the steps to do that:
1. Visit this page https://help.shopify.com/support
You won't get access to a support representative right away, so
What you want to get out of that interaction:
Hope this helps!
Please post back how the conversation went and if your issue was solved.
Ted here from Shopify, thanks for teaching gout to us!
What @rsdimitrov has mentioned is correct, it looks like you had an old account with us and the custom domain is still attached to the old account. I can help remove the domain but I'll need to verify proof of ownership with you first. I'm going to email you privately for more info if you could keep an eye on your inbox.
If there is anything else I can help you with, please let me know, I'm happy to help!