Hey guys I received a bad batch of nic recently and the vendor is willing to make it right . They gave me an address and asked me to return said product. It took them 4 days to respond to my initial email and I just emailed again asking what's the best way of mailing , as I never have shipped nic. I suppose I can wait for their response, but would like to get it out as fast as possible in order to get my new and hopefully better product this time. Anyways, what's the best way of doing this? Arent there restrictions when shipping hazardous chemicals? I know vendors do it, but always thought they can because they are licensed to do so.....thanks