hello guys. yesterday, i logged on offical site and be4 click to [Update region.. ]

it was showing " The geographic region associated with your account is: RS " RS - Republic Serbia

when i clicked ( idk why )

The geographic region associated with your account is: CS
You are connecting from the same region that is already associated with your account. You do not need to change your region.

Its changed to CS. and now i cant log into the game.... what should i do to set it back to " RS "

ty and sorry for my bad english