Only BitStarz has some strange games that at first withdraw MORE than you bet (the history is shown correctly), and then after a while return the extra money written off back to the balance. And the casino support is calm about this, as if it should be so.
The balance is returned after a scandal in the chat.
What happens when the casino cuts less and the player does not notice is unknown.
Moreover, in BitStarz you can find that instead of a balance of 5k, it will suddenly write a balance of 2.7k. And the support will say that this is a "visual error" and then the money will appear again.
Be careful! Such discrepancies may be the result of fraudulent actions by casino staff. It is designed for those who will not notice, and under the noise you can quietly write off tons of money from slobs and crazy people.
Considering that the main PR person of this company is TTR (a fan of volcanoes, etc.), BitStarz can be safely classified as a very risky casino with discovered cases of fraud and technical malfunctions in operation.