License Key not received

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Registered UR a couple of days ago. I received an emailed receipt but still haven't received the license key email.
Tried yesterday sending a couple of emails to Kinook but no reply.

I really want to start using UR in earnest - its a great app. and is going to be a great help to us.

Anybody any idea how long it usually takes for the key after you've paid for the software?