I wonder how you people come to these shady casinos. Before deciding to play there, have you checked the reviews? https://www.trustpilot.com/review/www.cosmocasino.com.  The reviews are very bad. Many people have complained about their ill behavior towards their players. You should be thankful that at least you got your deposit back. Many people are not able to get that much either. Nevertheless, nothing can be done other than battling with their customer support. You set an example for the newbies to never join these types of untrustworthy casinos. Go for casinos with a good reputation like Stake.com and a new yet promising casino like luckydiamond.io.