help! 'Activation limit exceeded' (ver 12)

Hi, I just reset my Mac. And I tried to activate my Parallels, but I saw the message 'Activation limit exceeded'. I hope you solve this problem. Parallels 12 version. The last serial number is 'xxxxxx-xxxxxx-xxxxxx-xxxxxx-
TNCXNH'. Please send me massage for more information.
Thanks for the help!. have a good day!

 

Hello, please try to activate your license key now.

 

Hello, thank you, but it didn't work. Please check again. (This issue is to activate the previously purchased 12 versions of the serial number in order to activate the upgraded serial number, version 16!

 

Hello, please help us with the error screenshot.

 

But it's written in Korean, so you won't understand. Just like I said, it pops up like this.
"
The license server does not allow the previous activation key.
Make sure that you have entered the key correctly. The activation key is stored in the parallels account. If you don't want to worry about many activation keys and upgrade procedures in the future, we recommend that you purchase a parallels desktop subscription.
"

I want you to solve it quickly. It's so uncomfortable because I haven't been able to use the computer.

 

Hello, we have sent you a private message. Kindly help us with your both license keys over there.

 

Hi, I just reset my Mac. And I tried to activate my Parallels, but I saw the message 'Activation limit exceeded'. I hope you solve this problem. I have two subscriptions of Parallels 12 version. The last serial number is
'xxxxxx-xxxxxx-xxxxxx-xxxxxx-MZ56G5 and xxxxxx-xxxxxx-xxxxxx-xxxxxx-M5JSBA
'. Please send me massage for more information. I have tried everything to contact support or reach out or call customer service and email but not luck. :-( Please help I have unable to work on get anything done without activation of software. Thank You

 

Hi, I just reset my Mac. And I tried to activate my Parallels, but I saw the message 'Activation limit exceeded'. I hope you solve this problem. I have two subscriptions of Parallels 12 version. The last serial number is
'xxxxxx-xxxxxx-xxxxxx-xxxxxx-MZ56G5 and xxxxxx-xxxxxx-xxxxxx-xxxxxx-M5JSBA
'. Please send me massage for more information. I have tried everything to contact support or reach out or call customer service and email but not luck. :-( Please help I have unable to work on get anything done without activation of software. Thank You