I'm PA only and have never called, but I've been using the tubes (not the tin) everyday multiple times a day for about 10 years. I have a problem.
I will say, two or three times in the 10 years, I've bought a tube of the plain and it was definitely the cherry or strawberry flavor mispackaged, so if you're allergic to those I'd say avoid just because there's probably a chance of cross-contamination.