as a rule of thumb, you dont become a multi-millionaire for nothing. where i come from, there is a saying that in order to become rich you have to step over a few corpses. not necessarily meaning that they are dead (although never rule that out) but that to become a multi-millionaire and remain one you need to be ruthless…
besides, most rich people i know are penny wise pound foolish…
…but sounds like you got badly ripped off. white label/private label deals can really backfire if you don’t own the domain. or they can backfire if they steal your players or discontinue offering their gaming platform.