I had some trouble withdrawing. Seems like like the Numbers I put into the Box were all bad (like 1.22).
So i spent some time looking at the source Code, and figured out there is a RegEx for verifying Numbers with german locale settings.
I didnt expect that, Websites and other Software using German locale settings are very rare.
Seems like Mooncoin detected my locales (how ? must be user agent or IP) and wanted Numbers like 3,14 - proper german, but unusual.