How it works is once you swipe the card for the total amount..lets say 6000qr you fill out a form(available at the vendor)and fax it to the hsbc credit card dept. There your total amount is broken down over 6 equal installments...in this case 1000qr every month. There are no hidden charges whatsoever. The promotion is meant to increase awareness of HSBC Cards and promote usage among existing customers. Customers might remember a similar offer with damas last year.

oh btw im an ex-staff of hsbc doha.