I know how many points I require to buy a $50 gift card and just as I hit it, I cash out my guidelines.
You can register your cards looking on how many you have stashed along with you. Further there is a PIN in an atm card where as copyright gift cards there isn't PIN. https://groups.google.com/g/giftcard-mall-my-gift-info/c/lJb4jNQqwjY