Well, in this case, the casino is right, unfortunately for you.
It is not allowed in most of the casinos and it should always be written in the terms. Therefore we recommend reading those even before depositing in any online casino, to prevent future issues.
I will suggest you to file a complaint here with our team, though, so they can fully investigate the whole situation and try to contact the casino for you. Only this way can we find out what can be done in your case.
The complaint is free of charge, so don't worry about any additional cost.
Here is the link that you need to follow. Explain the whole situation to our complaint team, please, and hopefully there will be some good news regarding this.
So, will you try this? Tell us.