I can see that if you have such feelings, it would probably be best to take a break or quit playing in online casinos. I think it should just be a casual entertainment and shouldn't cause such emotions.
Regarding your situation, I would also contact the payment provider in this case, because it might be a mistake on their side. If the casino didn't receive the money, it's hard to do anything about it because as I said their hands are tied. Try to ask what the provider itself will tell you.