Coils burning in days

I have a voopoo and all but one coil in the starter pack only lasted a day or 2 and I have no clue what’s wrong I prime them I left them sit for a bit I even use low voltage and build it up to higher, I bought .3 ohms coils and put one in last night waited for it to soak it up and even went slow and used to low watts and built it up and it was burnt when I used it this morning please help