There was a window of time in which marketing execs designed promotions without testing the mechanic...the "Hoover flights to the USA promotion" that ran in the

There was a window of time in which marketing execs designed promotions without testing the mechanic...the "Hoover flights to the USA promotion" that ran in the UK in the 90s was similarly gamed and resulted in Hoover UK entering administration IIRC, https://en.wikipedia.org/wiki/Hoover_free_flights_promotion https://en.wikipedia.org/wiki/Hoover_free_flights_promotion