‹ Interest charge computation on credit cards_27 August 2019 Proposed Requirements on Point of Sale (POS) Infrastructure_8 August 2019 › Contactless Payment Transactions_18 August 2019 Click here to download the Letter in PDF format. ‹ Interest charge computation on credit cards_27 August 2019 Proposed Requirements on Point of Sale (POS) Infrastructure_8 August 2019 ›