I want to change my subscription

Known qpal1728 ● ago

Hello. I use an iPhone, and I need to pay 149,000 KRW per year through the App Store. I thought I was paying 12,000 KRW per month for a year, but I only realized after subscribing that I had to pay 149,000 KRW upfront. I currently don't have the money to make the payment, and I would like to switch to a monthly subscription model to pay.