Just follow the site, it may be easy to update the [proof] discount anytime. All of the latest coupons and discount codes are shown as soon as they're released. If any [proof] teacher discount is launched, you can also know as soon as possible.

Usually, Coupon Stacking is not allowed at [proof]. However, the store will surely give out notice if available.

Yes, it has ever. It may not be available now, but it is completely possible for loyal customers of [proof] to get it by tracking all of its promotion programs.

Shoppers can get coupons for their first purchase at the store. However, it is not all the time, sometimes, they cannot apply a discount on items selling out or items not contained in the promotion program. It depends on the time you shop at [proof].