Polish premium tank level 8 free World of Tanks

The holidays have passed and commenced individual offers. Some players from the EU (Poland) selectively and randomly comes here is an interesting offer (photo below).

If you demonstrate all your skills, you will get a premium 8 LV tank. 50tp prototyp is absolutely free.

"Commander! 
...special tank for 1 battle, 50tp prototyp has already been added to your account. Play it battle and if you show special skills by taking 1st place in your team in terms of basic experience (whether you win or lose), you will get a premium 50tp tank with its special "Winged Hussar" style for free ! 
Good luck!»

- After a successful fight: 

"Good job, commander! 
You have proven beyond a shadow of a doubt that you are a force to be reckoned with and lead your team to victory. 
As promised, 50TP with its impressive "Winged Hussar" style is now yours!...»

It is strange that Wargaming does not offer any separate discounts or coupons in this offer. We're not likely to have that.