How to install Final Cut Pro X from App store with registration code

My employer recently purchased 3 registration codes for Final Cut Pro X. I received them today and wanted to get started installing Final Cut Pro X.

My question is this. How do I download Final Cut Pro X from the App Store using these registration codes so my personal Apple ID will not be charged the 299 fee for downloading it? I downloaded the Final Cut Pro X trial from Apple hoping I could just activate it using the registration codes but this is not an option. Upon starting it states its a trial version and I can continue using the free version or buy the full version. When I click buy it takes me to the App Store.

I just dont want to sign in with my personal Apple ID and get charged for something that I have already purchased.

Any help would be greatly appreciated.