Hi there, thanks for your message and for sharing your experience.
In my case, I believe the "incorrect MCC" argument wouldn’t work because Banco Santander already categorizes these transactions as gambling. The real issue is that the casino (Wazamba) is not licensed in Spain and has been officially blocked by the Spanish government (DGOJ), so it’s clearly illegal here.
Also, my funds are still retained within the casino, and I can no longer access them because the website is blocked in Spain. Despite all this, the bank denied my claim, stating that the transactions were "voluntary".
I feel tricked and mistreated because they’re ignoring the illegal nature of the operator in my country, as well as the fact that I’ve been legally self-excluded from gambling since 2020. It’s extremely frustrating that this wasn’t taken into account.
Thanks again for the support — it helps to know others have been through similar situations.
Automatic translation: