Sounds like service techs refusing to do warranty work b/c they aren't making any money off of it to me...
Get a file/case # from Nissan Customer Service and have them call your dealership to arrange for them to fix the problem and honor the TSB. Document it and file a complaint with Nissan. You're not the first one to experience a problem like that.
Go
here to see another one...
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~Radiant Silver K/C 4x4 SE~
~Big Tow, Off-Road Pkg, Utility Bed~
~Born 08/04~
~Adopted 09/04~
-I don't have the answers, I'm just a guy who likes to think and share his ideas...