I took a pic of the unit I have and was wondering if anyone out there knows if these can be refilled using e-liquid nicotine or if there are cartridges available ? These are from "The Safe Cig" company. Nobody seems to have these but me. I want to order from Canada if possible. If the image does not show up, I will try it again. I have emailed a couple of companies with inconclusive results. Can these be refilled? Thanks