Is it possible to conveniently exchange currency without commission?

Question

Payment systems

Periodically we change small amounts of rubles for dollars (about 200-300 at a time). I find profitable offers on banki.ru. But when I come too often, I see the price tag has already changed :(
Tired :(
Is there any broker who would allow you to buy not for a thousand dollars, but for less
? . Is it possible?

Answer 1

Exit: Earn in dollars immediately.