I havent records of the old stuff anymore.
Actually, this does represent an ongoing issue with 3rd party Blitz-related apps as he isn't the only person who did not retain/transfer purchaser information.
"sswifty" is another and there have been others that I cannot think of whereby they may 'lose' info on who purchased what.
This is why this thread was created - yes, it all turned out right in the end; however, it is something for people to be aware of when purchasing - always keep a copy of registration e-mails/proof of purchase.