Can't use older key when upgrading to Parallels 12

I'm trying to upgrade to 12 but apparently my previous version is too old.
Since I already bought the 12 upgrade, is it possible to just pay the difference to get the full license?
Thanks.

 

Hi MatthewT1,
Please check your private message and respond to us.
Thanks.

 

I have the same problem too! Had parallels 9 installed, bought the upgrade to 12 and my old activation key is not working. Is it possible to only pay the difference for the new key?
I have already sent an email to support but no reply yet.
Thanks.

 

Hi
I bought 12 and i try to activate product. Activation system ask me about old code from my last version ( it was 9 ) and it doesn't works.
Could You help me with this ??
Thank You

 

I replied to your private message a few days ago but haven't received any updated since then. Could you please advise?

 

I have the same problem. Bought Parallels for Mac 12 as an upgrade from Version 9. It will not except my Activation Key.

 

Having the exact same . Bought Parallels for Mac 12 as an upgrade from Version 9. It will not except my Activation Key.

 

We've requested for a few information in private message. Please check and respond,we'll help you out!

 

We've requested for a few information in private message. Please check and respond,we'll help you out!

 

Hello @MatthewT1
We've processed the refund for your order. You can purchase Parallels Desktop 12 for Mac Full version from here

 

We've requested for a few information in private message. Please check and respond,we'll help you out!

 

Have the same issue: my most recent key was bought for v11 and now is an active PRO subscription. But then I'm asked for previous key, which when I provide (v10) and click [Activate], PD screen is loading sth, then stops and [Activate] button is active again. Nothing happens...

 

Please check private your message and respond. We'll continue from there.

 

Hi MarcinR1,
Install Parallels Desktop 11 and activate it using the keys you have then install Parallels Desktop 12 which will get activated.