If the same situation happened to me, I would also do the same. I'll fight for my rights and claim for the amount I've won. Even how long it will take.
I'd do the same because if I did not, I have something to regret in the latter years of my life so if I still can I will fight for my rights and hopefully it will fade off just like what happened to the winner, everything side with him because all the evidence pointed that he won the 12 million pesos, it's a long battle I'm sure he will enjoy the fruit of waiting for 9 years.
I'm sure he will value every cent of the prize because it is blood and sweat just to get it, and also this is a big lesson not to do anything with a winning ticket to avoid the same scenario.