https://klgadgetguy.com/pay-later-for-your-favorite-tech-gadgets-with-ioupay/

How is IOUpay different from credit card instalment?

It’s similar and better in some ways. Unlike typical credit card installment facilities, IOUpay doesn’t charge any upfront processing fees and lock your card’s credit limit, instead you will have a separate credit limit of up to RM10,000 from IOUpay, which is great for those who doesn’t have a high limit credit card and wants flexibility in managing their cash flow.

Debit card instalment? How is that possible?

IOUpay charges the monthly instalment to your debit card like a typical merchant transaction, hence it doesn’t require your debit card to have a minimum balance in order to use the service but rather, you need to ensure that you have sufficient balance in your debit card for the service to deduct the monthly instalment amount.