The fact that you use the word "fraud" makes it hard to take your complaints seriously.

Given how rare award seats are on SQ and NZ - especially for partner FFPs to book - I would assume that you have stumbled across glitches where TK thinks there might be award space, but the operating airlines have no intention of confirming it.

Are these situations where you could have booked with UA or Aeroplan, but decided to try M&S to spend fewer miles? Or were you checking the airline FFPs directly and then called TK to book (and got lucky)?

P.S. The only "magic" solution with TK is getting a ticket office involved instead of the call centre.