Please submit a
support ticket and let us know:
1. The full name of the person who paid for PokerTracker 4 especially if not you.
2. All possible email addresses in use. It doesn't have to be the address you think was used, just send all those in use back then and we can search with each one.
Alternatively if you have a running PokerTracker 4 on another machine you can click "Help -> About" which will provide the name, email address and last six characters of the registration code and you can send us that information in your ticket.