Accidentally Transferred Website

Hi there,

A little embarrassing but I have accidentlly transferred my website to another existing website/domain I do not own by changing the URL in the general setting area. I changed it from thexuesheng.com to journeytotheeast.com.au.

Now I obviously cannot log on to my website and do not know how to get it back. The website has just started so I do not mind getting rid of it through hostgator, however I would obviously rather get everything, including my theme, back.

Any help would be appreciated! Thank you