Hi JE,
I am Sumit, an Independent Advisor and a 3 year Windows Insider MVP here to help.
The free Bedrock copy offer ended on 20th April this year.
https://answers.microsoft.com/en-us/windows/for....
The redemption program would end on April 20, 2020 so make sure to get the code before.
If you purchased Minecraft Java Edition before October 18, 2018, you will see a button that says “Redeem” in your account.
· If the button is grayed out, you’ve already claimed the code. Log in to your Microsoft account to redownload the game.
· If you don’t have a Redeem button, you purchased Minecraft Java Edition after October 18, 2018 and are not eligible for this promotion.