Domain refunded

3 0 1

Hello, I tried to purchased a domain via Shopify a few days ago and I received an confirmation/receipt for it, however, there was an error message and I was refunded immediately.  

After changing some of my settings, I tried again but the domain now says it is unavailable. I have tried on GoDaddy as advised by a shopify chat staff and it is unavailable on there too. 

How do I get it back? Help please!