Hi, so I’m new to this. I recently purchased the eleaf IJust 3. When I bought it the guy who sold it to me primed my coil and sold me some extra ones and told me they should last about a week. The one he put in for me did last about a week, but I’ve had to change the coil twice since then and every time they have only lasted about a day if that before burning. It’s probably user error because I’m new to this, but I was just wondering if anyone could help me and tell me what I’m doing wrong. Thanks!