Here are guidelines to add a promo coupon in the following:
1. Click ‘NO ADS’ tab on the top.
2. Choose a subscription plan and click the button on the right.
3. Click ‘Add promotional coupon’, and enter the code.
4. After typing in the coupon , click the ‘Enter Coupon’ button
5. Once you are done with adding your coupon, click the final red button in the prompt
6. Follow the rest of the payment procedure
7. Enjoy all the contents on KOCOWA!