Here’s what you can use to pay for Songer right now:
Cards (including Visa, Mastercard, American Express, Maestro, Carte Bancaires, Diners Club, Discover, JCB, and UnionPay).
PayPal
Alipay (requires additional approval)
Apple Pay (HTTPS pages on Safari only)
Google Pay (Chrome only)
22+ South Korean Local cards (including Shinhan, Hyundai, Samsung, and Kookmin).
Naver Pay, Kakao Pay
Only available for Pay-as-you-go:
Bancontact
BLIK
iDEAL
MB WAY
Samsung Pay
Payco
Pix (in Early access)
UPI International (in Early access)
If your preferred payment method isn't supported yet, iDEAL, Twint, or anything else not on the list, PayPal is the best workaround for now.