Content originally posted in LPCWare by lpcxpresso-support on Fri Jan 29 08:37:51 MST 2016
Assuming that you purchased from the LPCXpresso Pro Kagi webstore, you can use the email address provided in the email receipts along with your activation codes.
Or else, once you have activated with a Pro Edition license, just use the Help->Support menu within the IDE itself.
Regards,
LPCXpresso Support