Well, I am a bit more cynical and agressive when it comes to stuff like that.
My plan of attack would be an email stating you HAD germed them and you are fully legal (weather you are or not, they misled you so why not mislead them a little) I would then mention you are a prominent member of several online forums and you will be publicising your experience of their product, name of company, name of strain, date of purchase etc in a review you are completing on several products from several different vendors. You expect them to fair badly in this comparison.
No threats, just an honest review of your findings. I will read it and I feel you should let us know where you bought them so we can be warned not to use them!
I do feel for ya though.
Stay frosty fella. W