Normally, the military discounts programs on some occasions of the year. In order to know whether it is offered or not is depended on SanityCheck.io's policy sales, you can visit the store now for your reference.

Normally, one discount code is only applied for one offer. However, If the users put a vast of items in their cart, it is easy to use one coupon code to purchase items. It depends on SanityCheck.io's policy, you can contact SanityCheck.io via mail for your reference.

To avoid this problem, you should check out carefully SanityCheck.io promo code before that promo code could be expired, some promo codes are tied to a minimum purchase, a first-time purchase, or tied to geography, and other reasons.

Usually, Coupon Stacking is not allowed at SanityCheck.io. However, the store will surely give out notice if available.

There is no certain number for the frequency of releasing coupons from SanityCheck.io. But, most of the time, there will be at least one available. Special Discount Days such as Black Friday, Cyber Monday, Back to School Sale... come with many coupons.