The lottery is a popular form of gambling with a simple premise. Participants buy tickets, pin their hopes on a sequence of numbers and, if their selection matches the winning number, they win. The draw, conducted through a random number generator, ensures fairness and preserves the integrity of the game. And the thrill of winning can spur consumer spending, as winners might inject their windfall back into the local economy.

In Thailand, lotteries are a major source of state revenue, contributing 28% to the state budget and 12% to administrative costs. The lottery is one of only two forms of legalized gambling in the country, and is drawn on the first and sixteenth of every month. And although it’s not a guarantee of wealth, Thais love to have a flutter.

It’s not uncommon to see a street vendor carting around a brown wooden box full of lotto tickets strapped to his bicycle. But the popularity of the lottery has also given rise to a slew of unofficial agencies, offering bigger prizes, better chances of winning, and credit purchases. And despite the high stakes, some punters are losing out.

The lottery is administered by GLO and sold only in “ticket-pairs”. Tickets are pre-printed with anti-counterfeiting features and can only be purchased as a pair. Tickets are divided into categories by prize, with the highest prize being awarded to those who match all six digits in the correct order. A second prize is offered for matching the first three digits, while the last two digits are used to determine the final winner of a bonus prize.