Hello there and welcome to AskGamblers.
First of all, really sorry to hear about your strange incident. You should keep in mind though that glitches and/or tech errors do happen occasionally with casino games and when and if that happens there isn't a single casino operator out there which would honor any funds won during / via such glitch/error.
Bu contacting MGA and filing official complaint against the operator you've done the best possible to defend your rights since the regulatory body is the only competent authority to provide adequate investigation of such an issue as yours.
Good luck and keep us updated.
I like blackjack. That is because it has so many options for betting prices, along with a little strategy. I feel like I might be in a little bit more control, rather than just pressing on a slot and hoping for the best.