You have been back and forth with support and risk management for a couple of days regarding this, so you have indeed received many responses from them.
As mentioned, any player can only have one account. Multiple accounts is not permitted. This has been in our casino T&Cs for as long as I have worked here (10 years) and as long as we have owned Luxury Casino.
The excerpt that was sent to you from our T&Cs:
General Promotion Terms and Conditions
1.All promotions can only be claimed once per computer, mobile device, person, household, family, household address, email address, credit card number, IP address or shared computer environment such as a library, workplace, fraternity, university or school. Any winnings associated with a bonus being claimed more than once will be confiscated and the casino account locked.
As you have said you are already discussing with KGC, I am no longer able to assist in this complaint. Once you have the results from KGC please kindly send them to ask gamblers so they can resolve the case either way.