Both ipaymy and cardup replied to my queries on rental payments.
Both replied that the MCC is 7399 for rental payments for UOB One credit card. Rental payments will also be tagged as MCC 7399 for Maybank Platinum Visa and SCB Manhattan Mastercard.
So, rental payments will be eligible for reabtes for these three cards.
I would think that they would not want to risk posting a MCC that does not give the customer card rewards/rebates - kinda defeats the purpose of using their service (cardup or ipaymy).
