You can find your license key and order ID in the order confirmation email you received right after you purchased Semplice. Just search for an email from noreply@sendowl.com in your inbox.
Missing your order confirmation email?
Please write to help@semplice.com with the name and email address you used to purchase Semplice. If you used PayPal for your order, it will be the email address associated with your PayPal account.