Wordpress plugin

[zaombr]

Dear Leaui.
I am making big project for Russian teachers now and I am very interested in Wordpress Formula Editor Plugin.
I want to buy it but the dollar has increased two times comparing my native currency - Russian ruble (now it is 69 rubles for 1 dollar, earlier it was 30 rubles for 1 dollar).
I havent got ehough money now, could you please sell me you plugin for old ruble exchange rate - 30 rubles for dollar that means 7 dollars for now.

If you cant I guarantee I will pay you 9 dollars more after my current project.

With best wishes,
Alexander.
zaombr@yandex.ru