Answer:
Sweepstakes
Explanation:
According to my research on different types of promotions, I can say that based on the information provided within the question this type of promotion is called a Sweepstakes. They are basically when individuals enter by buying either tickets or filling out an entry form and then are chosen based on a random criteria. Therefore these sweepstakes usually give people the same chance to win as everyone else. Which is what is going on in this situation when they companies give the customers tokens as entries into the sweepstakes.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
