[2024] I can't use the 75% coupon in IOS Version DE intends to cheat customers?

Hi there, please post a screenshot if at all possible. It sounds like you might be misunderstanding the nature of the Platinum discount? Often you might get an offer for a % bonus platinum with the purchase of a Platinum pack. 

We reworked how Platinum Coupons & Discounts worked last summer.

 In the past, on consoles, you might have seen a promo that offered you % discounts on items in-game. Based on what you're describing, you likely received a promotion that offers 75% Bonus Platinum with the purchase of a regularly priced Platinum Pack.