The same reason she did not apply for James Randi’s 1 million american dollars. Not only does she have no psychic powers, but also no reasoning ability. Anyone with half a brain would have predicted, the very least at the point when she only got 7000 and a ring, that the granny would seek money from relatives and thus make it almost a certainty that the authorities would be alerted to her machinations. Were she not such a moron, she would have said “Ok, because I am a nice person and I like you, I will lift the curse for the 7000, you can keep the ring.”