If you did not want players using these slots with a bonus then you should have something in the terms to say this. Your terms said nothing about not being able to play these slots and I did not only play those games. You are talking like playing these games means I will abuse the casino, but even if you processed my withdrawal my account was not even in profit!

By saying you will refund my last deposit you are just voiding my winning session but retaining the session where I lost money. Casinos that do this kind of thing are predatory, where does it end? if someone plays a jackpot slot with a bonus (and contributes to the jackpot) is it then abuse if they then win it with a cash deposit?

Come on, it needs to be in your terms if you don't want people to use a bonus a certain way. Just refund both deposits and stop making excuses.