The email for our Tropic Marin USA office is
[email protected] you are more than welcome to contact me there. However, we are not sending out salt replacements directly. Your LFS will be doing the replacement of your salt, for you, through their distributor. If they have not been contacted by their distributor, about the replacement program, ask them to ask their distributor sales representative about it. If they still have questions, they are more then welcome to email us directly, at that email address, and I will help clear up any questions they have.