Hello...
I can't log in to the game for 3 days.
Today and yesterday when I try to log in I wait to connect for like 15 seconds and then pop "Unable to connect. Please try later. If the problem persists, please contact technical support at (link for blizzard)".

What is problem and how solve this?

I am from Serbia and I have never had a problem like this. 3 days cant play a game...

Help please