Glad to hear of a company responding in a quick and positive manner.

Not to hijack your thread, but is their bottle, or some other steel / aluminum bottle designed so that it could have water boiled in it?
Just thinking of a situation where you ran out of water and no H2O tabs but could boil water in it to purify for drinking. (Have thought about this a few times, but never did an internet search to see if there was such a bottle.)
I know some of the aluminum bottles I've seen state not for hot liquids, so boiling would be out of the question.