It's weird. I'll say it's a joke until there are confirmed procedures.
How do I claim 1 free month of membership?

This really isn't a beta related topic.
However, for the Super Duolingo, you'll receive an email, up to two weeks after playing the bots with a link to sign up to a one month Super Duolingo trial membership.
For the premium here, you have to do the challenge on their site and you'll receive the one month trial offer after completing. Not sure if that's via email or a code from the app.

It's weird. I'll say it's a joke until there are confirmed procedures.
I got the two month Super Duolingo offer. If you complete the requirements, you'll get the offers.

Because I did it 1 week ago.
If you mean for Super Duolingo, you'll get emailed a link to the address on your account. You click that and if you have an account already, use the link at the bottom to sign in.
It's possible you haven't received the email yet but you can check your spam/junk folders.

Because I did it 1 week ago.
If you mean for Super Duolingo, you'll get emailed a link to the address on your account. You click that and if you have an account already, use the link at the bottom to sign in.
It's possible you haven't received the email yet but you can check your spam/junk folders.
Do I have to save the games in my history?
"Until December 2nd, all Chess.com members can claim one month of free Super Duolingo while Chess.com Premium members can claim two months of free Super Duolingo! Members will receive the offer via email within two weeks of playing the Duolingo bots. Additionally, Duolingo learners can join a chess-themed November monthly challenge and earn a one-month Diamond membership on Chess.com."
How do I claim 1 free month of membership? And where is the link?