Mastercard’s price protection policy only offers up to 4 claims per year. You can can learn more about Mastercard’s policy here.
In addition, you’ll still be covered by the retailer’s policies up to 30 days for 30+ major retailers
Not to worry, Citibank and Visa offer unlimited price protection policies. You can check out these cards along with each of policy here: https://www.earny.co/explore-cards