E-mail address?
You will need to send your mail from your registered e-mail address.
Typically this will be the e-mail address from which you made your original payment.
Hardware ID?
To get your hardware ID:
1) Start CardRunnersEV
2) Go to "register" in its menu
3) It's the code that looks like 1559-121F-QC6B-BB42-4828-00C4-687E
Or watch
this video on youtube on getting your hardware ID.
Key nr.?
If you own one license, then fill in 1. If you own two licenses, then fill in either 1 or 2, in order to indicate to which license this key will apply.
Should you not enter a value for the key number, then it will be treated as being 1.