If you read the terms and conditions they pretty much cover their grounds claiming that if something goes wrong then it's someone elses fault and you're not getting your money back.
-Check the dodgy spelling
-"souvenir tickets"
-Not affiliated with anything to do with Muse or Warner
-Payment is only in Euros
-Looking at the source it's rediculously unsecure
-Basic tests suggest the host is from South America or Mexico
I understand many people know not to use the site but some people may still be tempted