A welcome bonus is a bonus that a casino offers its players once they join their site. It's a way to appreciate new customers and encourage them to play. However, any winnings from the welcome bonus may have to be used to make other bets before any withdrawals can be made.
Czech Republic or Czechia is a Central European state, and the producer of some of the best beers in the entire world, competing even with Germany. Most gambling is legal and legislation on mobile casinos is pending. At the moment the Czech are free to play in international mobile casinos.