A Shariah-compliant bank doesn't issue interest-based loans to its customers, because as you said, taking interest is prohibited in Islam. If a bank calls themselves to be Shariah-compliant and is still dealing in interest through loans,, they are big liars, and someone who practices religion and doesn't want to get involved should never use such a bank or take a loan from them because it is not just about the words but it is all about the actions that are taken.
So, someone who follows Islam religion and also want to take a loan from a bank, they need to make sure that they find a bank that gives them an interest-free loan where once they repay the whole amount, they are free from the loan and would not be asked to pay anything extra on top of that.
If banks do not charge interest on loans, the complete banking sector will be destroyed. How they will make money without charging interest on loans? The transaction fees, account maintenance fees and other fees are not enough money to run a bank because the expense of a bank is huge. Their main income comes from loan interest.
No matter what Islami banks or Sharia banks say, they are charging money for the loan which is interest. They don't call it interest directly. They named it as service charge which is interest. I hope you understand my point. Anyways, this thread is about Halal casino which is impossible.