Sad reality, but this tends to happen often on these local gambling apps/sites, and this lady should have just taken the 5m offered by the casino, regardless of whether she feels it's unjust.
She might have no case or any chance of winning if she takes this issue to court.
1. She agreed to their ToS the moment she played on their app.
VIII. Authority to Determine Final Results
The player agrees that the platform, through its certified game engine and backend systems, has the sole and exclusive right to determine, validate, and declare the official and final result of any game or spin. By registering as a player, and accepting the Terms Of Use of the platform, the player has deemed that it has expressly accepted all the game results based on the sole and final determination of BingoPlus, ArenaPlus, or GameZone.
No challenge, claim, or dispute regarding the outcome of any game shall be entertained unless the player provides evidence of a technical malfunction not attributable to the player's own device, network, or actions. The internal records, logs, and game history shall serve as the authoritative basis for resolving any discrepancies or disputes.
2.
The regulatory commission (PAGCOR) already stated it's a technical error. These guys could have helped her case if they deemed it a valid win, but alas, they didn't, which I know smells fishy, but that's what their decision is, and probably cannot be contested by anybody.
I'm not siding with this gambling site, but the lady should have used her brain, set aside her emotions, and accepted the offer, then kept quiet about it. Making noise on social media, giving interviews on local news outlets won't help her case and might even put her life in danger - money does a lot of things to people, and that includes doing very dangerous things.