I'm sorry to break the bubble but with your tone and on keeping or mentioning about the 88 ETH you've lost, it seems that you are pointing to Bitcasino.io as instrumental.
- Mysterious loss of 88 ETH ($165,000) shortly after a withdrawal (NOT accusing Bitcasino.io of this)
And probably this is why they are defensive and not responding to you because of this "accusation". Even if you say that you are not accusing them, they why involved this story? You might want to transfer to another casinos if you are not satisfied on how they treat you as a VIP.