Go to https://www.epicgames.com/store or click here. Log in to your Epic Games account where you want to redeem your code, if you're not logged in already. Hover your mouse over your name in the top right corner and click Redeem Code. Enter the code, and then click Redeem.
How do I redeem a code to my Epic Games account?
www.epicgames.com > en-US > epic-accounts-c74 > general-support-c79
An Epic Coupon is the Epic Games Store coupon that is applied at checkout when purchasing eligible games on the Epic Games Store.
The Epic MEGA Sale Coupon - Epic Games Store
www.epicgames.com > store > en-US > coupons > mega-sale
Sign in to your Epic Games account, then click the 'GET MY EPIC COUPON' button to claim one $10 Epic Coupon (to use on eligible games of $14.99 or above or local currency equivalent). The $10 Epic Coupon will be applied automatically at checkout.
Get a $10 Epic Coupon | Holiday Sale 2020 - Epic Games Store
www.epicgames.com > store > en-US > coupons > holiday-sale-2020