Безопасен ли bet770.com?

Very dodgy customer services team - after alleging on the website to answer everything within half an hour I'm coming up to 24 hours of no response to my two emails, and having been ringing them constantly they have yet to pick up the phone or follow-up my answer machine message. And that's without getting onto the fact that I'm trying to contact them in the first place as they won't let me withdraw any of the £400 I deposited - they seem to have added an extra condition to a bonus offer that you can't withdraw anything at all until you meet the ludicrous wagering requirements which they 'forgot' to mention on the email with the other Ts and Cs... Not impressed, I'd avoid this site if you can!