The code they gave me does not match Blizzards 16 digit code redeem. Twitch provided a 21 digit code and the redeem site says it is invalid.
Worked for me. Maybe contact CS.
Was your code 16 digits, or 21 digits?
Ah good point. Mine was 21 digits.
Sounds like the code is correct, and the OP is trying to input it in the wrong place.
Can you post a link to where you entered your 21 digit code?
The link in which Twitch provides when you click on it. Which is the link above. The Blizzard code is for 16 digit not 21. The error code in which it responds with is;
"Oops!
The code you entered cannot be claimed. Please check the code and try again. If you see this error again, please try again later, as the game or website may be undergoing maintenance."
You need to contact Twitch CS, not Blizzard. Twitch issues the codes.