[KEEP THIS DISCOVERY A SECRET OK?]
I made a redemption for SIN-TPE-ICN-HIJ-NRT-SIN in Business Class on Star Alliance airlines, BR, OZ & NH. To my surprise, I needed 55,000 miles and not 80,000 miles! I suspect the system take TPE as my destination and read it as Southeast Asia 1 to North Asia 1 and not North Asia 2.

Strange but true!! Don't believe? Call KrisFlyer at 67898 111 and do a dummy booking yourself.

https://www.singaporeair.com/pdf/pps...rip_june13.pdf

I issued the ticket already.

Details:
10 Nov 2013
SQ SIN-NRT/NRT-SIN For vsepr MR
Redemptions
-55000

Ticket/Receipt number Type Details Cabin class
618-24045103XX-XX
Flights BR226 Departing: SIN - Mon, XX Apr 2014, 13:10
Arriving : TPE - Mon, XX Apr 2014, 17:45
BR160 Departing: TPE - Wed, XX Apr 2014, 15:15
Arriving : ICN - Wed, XX Apr 2014, 18:45
OZ162 Departing: ICN - Thu, XX Apr 2014, 18:40
Arriving : HIJ - Thu, XX Apr 2014, 20:00
NH3236 Departing: HIJ - Sat, XX Apr 2014, 08:00
Arriving : NRT - Sat, XX Apr 2014, 09:40
NH901 Departing: NRT - Sat, XX Apr 2014, 17:35
Arriving : SIN - Sat, XX Apr 2014, 23:40

Business Class
Business Class
Business Class
Economy Class
Business Class

Conjunctive ticket
Payment details
Ticket fare:

SGD
0.00

Airline Fuel and Insurance Surcharge:

SGD
419.80

Airline Fuel and Insurance Surcharge:

SGD
5.30

Passenger Service and Security Charge:

SGD
19.90

Aviation Levy:

SGD
6.10

Passenger Security Service Charge:

SGD
8.00

Airport Service Charge - Intl:

SGD
13.50

PSC, Departure Tax and Contribution to International Poverty Eradication:

SGD
12.30

Passenger Service Facilities Charge (International):

SGD
26.20

Passenger Service and Security Charge (International):

SGD
6.50

Ticket amount:

SGD
517.60