You will buy the coupons, pay via stripe (link your card), and the coupons will be credited to your profile. You can then convert your coupons for the chapter.
I buy coupons thru gcash. I just use the amex virtual card there
You will buy the coupons, pay via stripe (link your card), and the coupons will be credited to your profile. You can then convert your coupons for the chapter.