[Denying]

pawn Код:

CMD:transfer(playerid, params[])
{
    new Target[MAX_PLAYER_NAME], amount, name[MAX_PLAYER_NAME], bool:found;
    if(sscanf(params, "s[MAX_PLAYER_NAME]d",  Target, amount)) 
    return SendClientMessage(playerid, -1, "USAGE: /transfer [Exact_Name] [amount]");
    for( new i = 0; i <= MAX_PLAYERS; i++)
    {
        if(IsPlayerConnected(i))
        {
            GetPlayerName(i, name, sizeof(name));
            if(strcmp(Target, name) == 0)
            {
                found = true;
                // You command here..
            }
        }
    }
    if(found == false) return SendClientMessage(playerid, -1, "ERROR: Use the exact player name!");
    return 1;
}

Not tested, was written in this chat, please try and reply here if it works.

NOTE: You need ZCMD and sscanf