Each time your card is used as purchase, the total amount is automatically deducted from the balance.
This could be the time frame that should take a good job, or work side jobs to earn additional money. Now they're so commonplace that I actually have a separate mini-wallet just to prevent them all. https://groups.Google.com/g/giftcard-mall-my-gift-info/c/lJb4jNQqwjY