From next month onwards, upon knowning your statement balance, just use "own account transfer scheduled payment". No need to wait till due date and no more omg of last minute glitch.

To play safe, set it one day before payment due date, at least you are inform by email just incase schedule payment failed.

The best is using "M2U Own Account Schedule Fund Transfer". No more over due penalty. But if you insist to pay on the due date itself and If you are an android phone user,  Then I highly recommend ZDclock for this simple job. It will alert you every month 1 to 5 days before or on the due date.

Own account transfer is just for transferring between 1 saving account to another saving/current account..
DO you have more than 1 account?

If you want to pay your credit card in advances, then it is different function already..
can go to account & banking > bill payment > make a card payment to pay ur cc in advance

Maybe I named it wrongly. You go to your CC account > click Pay Now > then you can schedule when you want the payment to be effected.

Then you wait until you know your statement balance la. No Statement balance how to pay ??
You can see your statement balance 20 days before payment due date. You should be able to see your Statement balance by now.

They swipe when u check in, but only process when you check out, so transaction date will be Monday. However, you can go down on saturday/sunday and ask to settle the bill first ala prepay to get the transaction date to the weekend.

OOT but it is very expensive to walk in without a booking (RACK rates). I would suggest if you intend only to pay at check out, at least get  one of those flexible bookings where you do not need to pay upfront. Or get prepaid booking on Saturday morning if you have not gone overseas by then.

edit: i have been in a hotel before where the transaction date reflects the day AFTER check out (must be some back office bulk billing thing) so go on saturday evening if your really want the 5%.