If a sushi train restaurant put out promotion like show them your ID / social security card at the counter ,if your first name is pronounced "salmon" but spelt differently you get 30 % discount off the bill , if spelt exactly "salmon" you get free and unlimited dishes from the train with 5 companies of yours top who can do the same.
Would you manage to change your name on ID card to get a free meal?
If this gimmick applies to different food in other restaurants, would you fix name for it?