I have found the same scenario lately - time after time, and it's really starting to annoy me. I've always religiously used Book A Courier as it's so much easier to pack something in any old recycled packaging and have it collected from my front door but I'm going to stop it now. I just sold something yesterday and see that the Aramax option originally available has changed to only NZ Post which would usually cost more anyway. Extremely irritated about that. If Trade Me is going to have a partnership with these companies then it is on them to follow through in good faith. Not happy at all :-(