This event is beyond tragic, without spending kobans the max you can reach is 4071 points, supposing you started the 1st day at full charge of trolls, season and league tries and you never skip a recharge (so you must login at least once every 8:45).
Also, is this a bug or losing a match in season and league doesn't give any point? Because I just tested that by losing a single match in league and i didn't got any point.