During your chat with Mitch he explained that your daughter (who you confirmed was your daughter) also has an account.
The terms and conditions of the casino specifically state that there is one account allowed per household. You read and agreed to these terms when you joined the casino. It is your responsibility to ensure no one else in your household has an account at the casino before joining.
You also received an email from Sally in risk management regarding this:
Thank you for your email.
As per the Terms and Conditions, a player agrees to have "Read and understood" the terms and conditions prior to making a real money deposit. The promotion guidelines and wagering requirements are clearly and explicitly stated on our website.
How you choose to wager your funds is your own decision, when you redeem a bonus you must wager according to Terms and Conditions set in place. It is your own negligence in regards to sharing WiFi networks, and not in the responsibility of Casino Rewards.
However, as a sign of good faith, the deposit funds have been refunded back to your Skrill account. We consider this case close, we will not be entering into any further correspondence in this regard.
Please do let us know if you need any further clarification regarding any of the Terms and Conditions on the website.
Casino Risk Management
As your deposit has been returned after the terms and conditions were broken, I can see no further action required on part of the casino here.