I bought the first one as well. Huge waste, since it was not clear when I bought it that it wouldn't support my VW TDI (Diesel) engine.
edit: just got the email about supporting my TDI a few minutes ago
edit: just got the email about supporting my TDI a few minutes ago
It was very clearly mentioned in various places on our website that Diesel cars were not supported before we added support, but we're happy to give you a refund if you missed it and never got to use the product. Please send an email to support@automatic.com and point them to this comment and they'll take care of it for you.
Glad to know support now exists, but the device was sent to a thrift shop many many months ago.
No worries on a refund now, it was just frustrating at the time :)