This place isn't even licensed, so if you have problems, you will have no retribution. Best to play at books which are licensed by real gaming entities. This one just holds a "data processing" license from Costa Rica. Any disputes you have with them will fall silent.
Don't play here; management is filled with awful people...as in terrible, greedy human beings -- your business should go elsewhere.
Problems can arise on any site. Whether or not you have a license does not matter that much. There are also sites in good standing that do not have an official gambling license, or at least do not withhold this information. As long as a gambling site pays the players, I don't see the problem of not publishing a gambling license and/or company details. But not every site is the same of course. This site has been around for quite some time, it is certainly not a new site.