Have you tried their service before?
I think, if the signing address in your Letter of Guarantee is legit - you will probably receive your coins back. If it's wrong - it's very bad

Yesterday the crypto mixer's website was working with different ssl sertificate, showing the fake btc address at the at the bottom of the page in footer
The address: 1CrypMixUKiXduy6J42nEzm4Z9CpJuXptSI is NOT their address. Also their site generated different Letters of Guarantee with the same fake btc address. I think the service was hacked, or they just started selective scam. First issues with the same fake address were reported some weeks ago.
I think everyone now should avoid using this service, until they will publish the officcial report about this case in this thread.
The legit signing address is: 1CrypMixXWtTjYGCM5ZJmyQYP1Y39P7aLM - bookmark it

The idea of the project is good, but the site itself looks too simple. You didn't even removed the copyright in footer section. Also the ssl is still missing
Whats your future plans? Do u plan to earn on ads on your site?

The idea of the project itself is good, but the design needs improvement. I've noticed very strange redirects after clicking some navbar links.
Also it will be good to add the section where users can submit the service or news