Solved
Survey says it's received the max # of responses?...
I tried to answer the survey minutes after I received the email about doing so and in exchange get a free game code, but it immediately said it's received the max number of responses. I waited a few ...
Worked for me today, not certain, but the solution may be to log into your EA Playtest account https://www.ea.com/playtesting before clicking the link on the email survey
