Casino Reputation – Players all around the world are eager to share their bad experiences online, to let other players know that they should avoid a specific casino or proceed with caution. A quick google search never hurts.
Player Reviews – Although it’s more common that players share their bad experiences online there is still a lot that posts good reviews about the online casinos that treated them well. This reviews often include what the user found best about the casino in question. This is valuable to you as you can easily get a picture of if the casino puts effort into the features that are important to you.
Complaint services – Sometimes it’s easy to powerless as a single player when you’ve feel mistreated by an online casino. There are several excellent complaint services like AskGamblers and Casinomeister to solve this problem. These services help out to process your dispute with an online casino.
This does not mean that you will always get your way but it balances out the power a bit. If the casino did you wrong this will spread and that will not be good in the long run for the casino in question.