Originally Posted by
barracuda93
If I understood correctly, original currency was USD (i.e. departure from US or Cambodia?), but for some reason you chose to pay MYR? And Chase converted MYR back to USD, which resulted in expectedly higher amount? If that's the case, I guess there is nothing to dispute.
I booked on MH for a domestic Malaysian flight, and I didn't remember seeing DCC when paying with a USD credit card.