wrong ip address - probably

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I have just spent 2 hours on a chat with my web site provider,  trying to change my shopify  web address to be more web friendly.  this was a disaster.  Now when I try to look at my on line store. which was the-beauty-spa-warlingham store it goes to my main web site www.thebeautyspa.  so in effect my shop has disappreared

My web provider cannot help and blames me for giving him shopifys 'help' page.  I am surprised shopify does not have a help line chat facility