activation problem

Hello,

I installed draft sight on my computer two months ago without problem, I receive the email and the link to complete the activation.

Last week I needed to format my computer, so yesterday I reinstal draft sight, and I try to activate the program but I didn't receive the email with the link.

So every time I start the program ask me to activate it.

I have windows 8.1.

Is there anyone could help me please?

 

Thank you

Adriana