I’ve been burning through Vaporesso NRG coils in about two days lately. Theyused to last about two weeks. I changed to SMOK but they’re no better. All coils are used in a Vaporesso Revenger X. Vapeshop in Cape Town informed me they have had a lot of complaints about coils not lasting. Has anybody else had the same problem? Any advice? It seems like they produced a bad batch of coils.