January trivia no-cost access to labs code

[kirtanc25]

Hi,
I have received a mail of Arcade Insider which states that I can access trivia labs with no-cost using a code which I need to claim and enroll in the Quest. Below is the SS of the mail:

 The code is valid for 72 hours. But below are the few questions for the same:
1. I have already enrolled in the quest. So, am I eligible to claim the code?
2. After redemption, I still get the screen while starting the lab stating from where should the credits being debited?

Also, I tried to un-enroll from the quest and try to claim the code, but after submitting the code, I am not being enrolled in the quest. I still see the button to enroll in the quest.

If anyone have the information, can you please show some lights on this?

Regards,
Kirtan