Overcharged Velocity Points CPH to MEL?

[jumpjam]

I just booked a flight with Velocity Points on Singapore Airlines from CPH-SIN-MEL in March next year in Business. The two segments came up separately on Velocity site with total of 159,000 points so I rang up Velocity and asked for two segments to be placed on the one ticket. I expected points to be 139,000 as per Velocity chart but call centre advised not it was 159,000 points. Should i argue the toss with Velocity and ask for a refund of 20,000 points or am I mistaken here.

 

[TMP]

You might have them on the one ticket, but they won't have been married segments so would have still been processed separately - hence the higher number of points needed.