When paying with credit card, after entering the wrong password several times, it says '비밀번호 입력회수 초과'.

It only applies to Korean credit card.

In the case of Korean credit card, depending on the card company, if the password is incorrectly entered 3 to 5 times, the card is suspended for security reasons. This is the card company's policy, not Moaform's policy, so you contact your credit card company and try again.