Note: The Parallels Tech Guarantee has ended as of October 31, 2015 for eligible purchases. Please visit our online store if you wish to purchase a copy of Parallels Desktop 11 for Mac.
I purchased Parallels Desktop 10 for Mac and activated within the Tech Guarantee 2015, however have not received my no-charge upgrade key for Parallels Desktop 11.
Customers who purchased and activated a copy of Parallels Desktop 10 for Mac from the Parallels Online Store or an authorized reseller on or after July 29, 2015 through October 31, 2015, are eligible for an upgrade to the next version of Parallels Desktop for Mac at no charge, subject to certain conditions.
An upgrade key for Parallels Desktop 11 is sent to the email used for registration of Parallels Desktop 10 for Mac.
If you have not received your upgrade key, you may check your spam/junk email folder or your Parallels account, as your upgrade key for Parallels Desktop 11 was automatically registered there when issued.
Log in at https://account.parallels.com/ and select Parallels Desktop in the menu on top. If required, switch to Licenses tab. You will see all the license keys registered under your account, including the key for Parallels Desktop 11.