"To obtain the bonus" means to receive or acquire a special reward or extra benefit that is offered or given to someone for achieving a specific goal or meeting certain criteria. Full definition
Investors would receive the company's own cryptocurrency on loan and obtain bonuses for signing up new people. (mcclatchydc.com)
To simply put it, it's when you sign up for credit cards with large signup bonuses such as travel miles or member rewards and then canceling them after obtaining those bonuses. (moneywehave.com)
However, many cards still afford the customers the ability to obtain bonuses multiple times. (rewardexpert.com)