Can't use coupon

[Noxiturn]

theres a 60% discount coupon on Door kickers: Action squad because i bought the Door kickers

I dont know how to use it, when i click on the coupon to read about, it just shows a button "See valid games" upon clicking on it i go to the game page and no option to buy it with the said discount

Game link
https://store.steampowered.com/app/686200/Door_Kickers_Action_Squad/?snr=1_7_7_230_150_1

im not sure if this is where i should ask this

edit: the coupon is still valid

[cSg|mc-Hotsauce]

There was an issue about 10 days ago with it. You may want to ask here...

https://steamcommunity.com/app/686200/discussions/0/1609400247620162854/

[cSg|mc-Hotsauce]

Originally posted by Eisberg:

Coupons can't be used on games that are on sale, only used on full price games.

It wasn't on sale when the OP made the thread. It is a Daily Deal for today that started ~1 hour 42 minutes ago.

[wuddih]

Originally posted by Eisberg:

Coupons can't be used on games that are on sale, only used on full price games.

"most coupons are not stackable on pre-existing discounts" would be a correct statement.

AI War 2 ($20) is on 40% out-of-early-access launch discount for $12
they gave out 20% coupons for owners of the prequel.
that is applicable to the purchase and lets you buy it for $9.60

i think this here is also just a small misunderstanding.
coupons are automatically applied when you put the product in cart and can be optionally removed.