Clarification on KF upgrade

[Kiwi Mile]

Found this on the KrisFlyer Site:

**For upgrades :
Only applicable to  commercial bookings on Singapore Airlines made online.

Does this mean that if I purchase an SQ ticket from a travel agent I cannot use the miles to upgrade? Does this also mean that if I purchase a *A RTW ticket in J and would like to upgrade one of the sector flown on SQ from J to F that I would be unable to do so?

[CGK]

If you read carefully:

... and Upgrades** online and save 15% on the usual miles required.

Your quote is the explanation for **. It means that you will save 15% from the required miles, if you do the upgrades on line of a booking that made on line as well.
In other words, you still can upgrade other bookings (whether made by TA, or SQ, or other airlines) but you will not get 15% saving.
Hope my explanation is clear enough...