I have a simple advice for you. Various gambling sites may have their own rules and algorithms that you may not like. Sometimes you may not understand how it works. In such cases it is better to refuse to visit such sites and it is better not to bet there. Now there is a huge selection of gambling sites on the Internet, find the one you like.
This is correct, as people are not bound to visits one due to high variety of choices available and they do accept wide range of coins as well, so just falling back is not required anyone. Try and what you like and where you win play that , else avoid if you find any suspicious things or better to just check in ANN thread and get it clarified as major and reputed sites do revert back quickly and resolve it.
Our life is short. So there's no need to waste time on things we don't like. If you think that the site bets are not made correctly or you just don't understand how it works, it's easier to leave than to find out for a long time whether they work correctly or not.