Casino Extra is not available in every country, unfortunately. The reasons behind this can be many but in most cases, it is because gambling is illegal in some countries, and in others, the casino doesn't have the necessary licenses to operate.
There are some additional restrictions for some countries too. For instance, the welcome bonus is not available for players from the following countries Albania, Armenia, Belarus, Brazil, Bulgaria, China, Croatia, Georgia, Hungary, Indonesia, Kazakhstan, Latvia, Lithuania, Macedonia, Moldova, Montenegro, Myanmar, Norway, The Netherland Antilles, Philippines, Poland, Romania, Serbia, Ukraine, The United Kingdom, and the U.S.A.
Players from Germany who use Skrill or Neteller to make their first deposit will not be able to claim the welcome offer.
USA, Netherlands, France, Dutch West Indies, and Curacao are restricted from Casino Extra.
NetEnt games are blacklisted in the following countries Afghanistan, Albania, Algeria, Angola, Australia, Cambodia, Ecuador, Guyana, Hong Kong, Indonesia, Iran, Iraq, Israel, Kuwait, Lao, Myanmar, Namibia, Nicaragua, North Korea, Pakistan, Panama, Papua New Guinea, Philippines, Singapore, South Korea, Sudan, Syria, Taiwan, Uganda, Yemen, Zimbabwe, Belgium, Bulgaria, Canada, Denmark, Estonia, France, Italy, Mexico, Portugal, Romania, Spain, United States of America and The United Kingdom.
Players from the following countries are excluded from receiving any type of bonus Albania, Armenia, Belarus, Brazil, Bulgaria, China, Croatia, Georgia, Hungary, Indonesia, Kazakhstan, Latvia, Lithuania, Macedonia, Moldova, Montenegro, Myanmar, The Netherlands, The Netherland Antilles, Norway, Philippines, Poland, Romania, Russia, Serbia, Sweden, Turkey, Ukraine, The United Kingdom, and the U.S.A.
If you want to see whether you can play at the casino, here is the full list of restricted countries:
Bosnia and Herzegovina
United States 
18+ | Play Responsibly | gamblingtherapy.org | T&Cs Apply | Offers NOT Available in Ontario