I've been vaping 3mg juices for a while and I recently ordered some 6mg (3mg was out of stock). It tastes like pepper. I haven't opened one of the bottles and want to try to exchange it. Or will I get used to it? Should I complain that their nicotine is bad or wait and see? I remember reading somewhere to put it in the fridge, so I have, but I'm really disappointed. This wasn't the cheapest stuff in the world. $0.50/ml. What do you think?