[2022] Birthday Coupon should have more time

Birthday Coupons are still a thing. Please contact Customer Support~

Looks like you filed your ticket under a header for Game Updates, which I don't think will work out.

Please try this link and make a new Customer Support Ticket. Explain that you haven't received the Coupon you expected to get.

https://na.wargaming.net/support/en/products/wows/help/31178/31197/31200/

I believe you just set your Birthday and wait for next year. The email you received on January 1st likely included the Coupon at that time so it can't be duplicated for this year.