Hi Sumo Ling,

Thank you for your question

Redeem your coupon code easily by:
Login to desk.bigvu.tv
Enter to “Profile” section (upper right side) or enter this URL: https://desk.bigvu.tv/profile/coupon
Scroll down to the “Redeem your code” section.
Enter your coupon code and than click on “redeem”
For more information : https://faq.bigvu.tv/en/articles/5543712-how-to-redeem-my-coupon-code

Each user will have an email and password, please read the article below:
https://faq.bigvu.tv/en/articles/3592995-how-do-i-invite-new-users-to-my-desk

Thanks