It's a glitch, happened to me like a month ago and made me lose 4mil, sorry to tell you but you most likely wouldn't get refunded, since there's no valid proof of you losing the money.
Unless u got video proof u can't do anything about that how do we know u spent it or gave it to a friend u need video proof in these type of things since it literally impossible to tell if u spent it and also they fixed the glitch you could be lieing