I decided to put both flights into one review since these are short haul flights. 2017 had been pretty hectic on many fronts and I decided that I needed a short getaway. I initially redeemed a pair of return tickets to DPS for 70k miles but unfortunately the Mount Agung situation forced me to make some adjustments. I topped up 10k miles to change my tickets to Hanoi instead (as I have not been to Hanoi before). About one week later, Singapore Airlines came up with their getaway promotion where 30% discount on redemption was given on selected destinations. Guess what, Hanoi was one of them! I still had to play around with my booking to enjoy this 30%. I converted more miles from my DBS account and did 2 separate one way redemptions. I was confirmed on SQ 175 but waitlisted on SQ 176 (while holding on to my original booking). 2 weeks before my flight, my waitlist cleared and I duly cancelled my original booking and got my 80k miles back within 4 days (with penalty of USD 30 per person for the cancellation). This is certainly worth the 24k miles savings!