I have searched endlessly via the internet and all my efforts have been fruitless. I need 4 bottom end caps for the 3.5 Aspire Vivi Nova. I can find the coils, new tips and tanks but I can't seem to find the bottom end cap. In my absented minded state I have managed to drop the V5 and Aspire tanks over 4 times resulting in the threads on the bottom portion of the tank breaking off. This has been completely my fault and should be no reflection on the products. Any help would be greatly appreciated.