Don't have key from previous version

[CanG]

don't have any key from "previous version." How to register in this case, please

 

[Maria@Parallels]

don't have any key from "previous version." How to register in this case, please

Hello, it looks like that you purchased Parallels Desktop upgrade, do you have any previous Parallels Desktop version? If no, please provide us with your purchase order we will check it and refund your upgrade, then you will be able to purchase full version.