I just unboxed the enail I ordered from High5 last week, everything was looking great until I looked at the coil...it's dirty and rusted . Bummer, I was hoping to use my new enail! I emailed High5 requesting a coil exchange...has anyone ever had to do an exchange with them? Are they easy to work with? If they do not have an easy exchange process, will any other company's coils work with the High5 enail unit? Or do only high5 coils work with their units? Thanks!