ok so i got two boxes of 2.7 ohm cartomizers at vapebash and out of the 10 cartos 6 of them will not fire. I filled them myself so i know they were filled properly and tried on multiple devices. I have only ever had maybe one dud in my time vaping. 6 out of 10 seems like a bad batch from the supplier. Has anyone ever heard of this happening? I don't really know what to do seeing as i paid cash at vapebash and there was no reciept.