[Konstantinos]

Did you disconnect to see the Data on the .ini file because if you didn't then it will not save it.
Also, if you close the samp-server.exe you will lost the data.

pawn Code:

public OnGameModeExit( )
{
    for( new i = 0; i < MAX_PLAYERS; i ++ ) OnPlayerDisconnect( i, 1 );
    return 1;
}