Can't activate Toolbox. Error "This license key is associated with another Parallels account"

Hi
I can't activate Toolbox using my key. The error is "This license key is associated with another Parallels account. Please sign in using this account and try again"
I have logged out of Toolbox and logged in again using the correct account, but the activation error is still happening.
My account is ok and the key is valid and is not expired.
Please advise how to fix this.
Thanks

 

Hello, please reply us back with your license key, purchase order and email which you used for the Parallels Account registration.
Looking forward to your reply.

 

Hi, same problem as others
I can't activate Toolbox using my key. The error is "This license key is associated with another Parallels account. Please sign in using this account and try again"

Please advise how to fix this.
Thanks

 

Hi, unfortunately we didn't find any key associated with jakub.c***lski@protonmail.ch
Please provide us with your license key via the private message.

 

Hello, we've received your email and moved your key to jakub.c***lski@pro***mail.ch
Please check