Manila, March 3 -- A lone bettor from Rizal has become an instant multimillionaire after hitting Monday night's PHP17.9-million Megalotto 6/45 jackpot.

In an advisory on Tuesday, the Philippine Charity Sweepstakes Office (PCSO) said the winner bought the ticket at San Mateo, Rizal and correctly guessed the winning combination of 12-25-45-40-33-27.

The winner has one year to claim the PHP17,977,214.41 prize at the PCSO main office in Mandaluyong City.

Under the Tax Reform for Acceleration and Inclusion law, lotto winnings worth more than PHP10,000 are subject to a 20-percent tax.

Meanwhile, 22 other bettors won PHP54,545.45 each for guessing five out of the six winning digits; 1,020 will get PHP1,078.43 each for getting four correct di...