I don't know, but I'd be pretty adamant with the supplier. The purpose of paying WAY more per ml for a sample is to establish that you like a flavor before you order a larger bottle. CLEARLY they've changed something, from ingredients to
eliquid base to flavorings from the samples to the larger size. In other words.. you flat out didn't get what you paid for. My only caveat would be before you make a HUGE fuss about it (because I would. I'm a very kind person, but nothing ticks me off faster than someone trying to get one over on me, then refusing to make it right when I've caught em making switcheroo) I'd go back and just try one of the samples again. Its highly unlikely, but i've had my tastebuds change toward things virtually overnight, so just make sure thats not what happened. If it isn't, then clearly the supplier has changed either their recipe or ingredients since the sample you bought, and you're entitled to your money back. Based on what you're saying, it sounds like the supplier has changed their base liquid, and if its significant enough to alter the taste and clarity, than they should offer you your money back.
btw, the only differences I've noticed between samples and large bottles is maybe degree of throat hit, because samples from my fave supplier come with slightly lower nic than that which i usually
vape. FLAVORS are exact same, though. If you're totally fed up with your current liquid place, try her out, at least you know you won't get hosed. She's utterly devoted to excellence from her organic flavorings to her custom blending (for anything other than sample size) and her client care. Plus, flavors are best I've ever had. And if you like the sample packs, you'll like the larger bottles.
www.virginvapor.com