I'm kinda late to respond to this, but I ordered a Vamo V5 from Fast tech on November 4th, just the PV no kit or batteries or anything else, and I got the email on Nov 9th stating that my product had shipped, and yesterday I emailed Fast Tech to find out why I haven't received it yet and their response was "Package was held up at HK post and rejected for security reasons" and they told me once they received the returned package they would reimburse me 100%.
I was pissed, I waited a month only to find out that my package was never going to arrive and they're gonna reimbuse me the lousy $32 I spent. I can't even get them to tell me why HK post rejected it, like I said I didnt order batteries or liquids, just the vaporizer.
That's my first experience with fast tech, and as a result I'll be ordering the V5 from a website in the states.
Best of luck if you decide to use them