I can't blame the casino for a mistake you made three times in a row, and I don't understand how you could have made the same mistake again. However, I can't find any explanation for why Roobet wouldn't refund, especially now that the Tron network is supported and funds can be accessed through the automated system, despite the fact that this was possible manually even without the supported network.
Maybe because if they frequently forgive mistakes of users, they'll face mistakes from them regularly and it will turn into a mess for them. To my mind, in such a case, it's better to block users from depositing in this specific network than not to refund them when you have access to that network.
I don't think users will risk making reckless mistakes with less caution just because the system is lenient. These mistakes are not common and rarely occur. I'm not saying that they should be completely overlooked, but each case can be handled individually since some deposits may not be large enough to cover manual recovery costs. Additionally, whales should be dealt with more flexibly because human error is commun to happen.
On the other hand, a whale player who is wagering millions of dollars is supposed to be taken into account. Why would I, as a casino, lose a loyal player willing to deposit millions just to receive a small amount that he accidentally sent? Honestly, I no longer see the logic behind all these practices that are supposed to stem from professionalism and experience in the field.
You might not believe but employees do not care much about the company. They are hired people who want to finish their job at 5 PM and get home ASAP. Company owners do not care much too, they generate good profit anyway and spend life nicely, so they do not get into too many details and employees hide this from them. This is why business owners should closely monitor operations in their company.
I can't believe this is the case with Roobet in particular. The evidence is that the lost deposit was refunded and the situation was handled smoothly.