We on m3post.com use an special Coupon Code for Carly products and even have a huge thread with all kinds of coding informations about this diagnostic tool:
Heres the thread:
http://www.m3post.com/forums/showthread.php?t=1231875
As for our 5€ Carly Coupon Code:
BEFORE you place your amazon order ,
send this 5 Euro coupon code
4ZECQD
to
trainer@mycarly.com
Explain in your email from wich amazon you'd prefer to order (US/UK/Canada/UAE)
Then wait for Carlys reply containing your "special" 5€ Amazon coupon code.