I asked if I was still going to be "flagged" as a no HazMat customer
My concern would be what the heck "flagged" means... is this just some designation within their system, or is this something that gets reported outside their company.... such as to the ATF? I don't know, but if it were me, I would want to know. Seems like from what you reported there would be no basis to "flag" you for anything. Upon hearing the "flag", I would have demanded to speak to someone up the food chain from the guy you were dealing with. You don't want to find out what "flagged" means 6 months from now when you are trying to get powder from some other supplier and they can't ship it to you because you are "flagged".