There is a new debit card for World of Tanks from Tinkoff bank. The promotion in quite interesting for players, if they live in Russia and play on RU servers.
The card gives a “gold” cashback from transactions by the Tinkoff debit card.
Premium account for 30 days
The card gives a 30 premium days with the first received goldback
Additional bonuses
A set of personal reserves and combat missions in the game every month
7.5 gold
Refund for every 100 ₽ spent on purchases
23 gold
Additionally for every 100 ₽ for purchases in the premium store with a Wargaming card (I think you have to link the two cards).
Up to 3.5% per annum
Rubles on the account balance
source – Tinkoff bank