MPN11,
Put it this way, I am so close to a Tesco cigarette counter if I stand at my front door I can see it!
I'll admit that the first day was touch and go, but I held out, I stood my ground, I'M A MAN
, and, gradually, as each day passed it became easier and easier to the extent that where I am now I haven't had an e-cig puff for a few days.
I don't know what you're trying, I didn't try these pre-filled cartridges, I went for DIY refillable cartridges with super strength 36mg Marlboro e-liquid, a search on a particular website associated with a S. American river might assist.
Dear Mods ... Please excuse any commercial advertising but all in a good cause.