Don't fall for "FREE" offers on e-cigs! They never are. Usually you have 10 days to try it and if you don't like it, send it back no charge. Problem is the time starts from when they send it. You might get it on the 9th day and then you are basically screwed. They will send you cheap cartridge refills every month for $50-70 which is nearly a 500% inflated charge and it's almost impossible to cancel. Stay away from FREE. shop here at ECF in the suppliers area. That is all....