Here's the deal. This stuff isn't regulated, so you do have to look out for yourself and your own health and safety. Don't think it hasn't crossed my mind where some of this stuff is really coming from, china? Who knows........and you know they put all kinds of weird stuff in the things that they make in china.
I bought some juice recently from chris and there was no problem with it. But, if mine smelled like yours does, I"d be concerned too and would return it. I"m going to guess it was the bottle that smelled. Plastics are made with all kinds of chemicals and maybe that bottle wasn't rinsed properly at the factory before shipped out. Who knows?
He offered to replace it. Either take him up on the offer or ask for a refund and buy somewhere else or make your own juice. You can buy the nicotine from blip labs. But you know, you don't even know for sure where blip gets their nicotine? There is always going to be risk involved when dealing with something that isn't regulated. You just have to figure out for yourself if it's personally worth it to you or not. Only you can make that decision.