Why can't I access my newly created online store?

Hi, I signed up but it’s not allowing me to access my store. Says the store is already in use, I created it, but after authenticating it acts as though I am a new customer. Help would like r0mget started with setting up the store with products.

I recommend you to email directly to Shopify’s Merchant/Technical support. They should assist you with the issue!
Contact page link: https://help.shopify.com/en/questions#/contact/email