[George_Fratelli]

pawn Код:

CMD:getrefund(playerid, params[])
{
    if(PlayerInfo[playerid][pConnectTime] < 1)
    {
        SendClientMessage(playerid, COLOR_GRAD1, "You can't get your refunds, you need to have a 3 hours playing time!");
        return 1;
    }
    if(PlayerInfo[playerid][pConnectTime] <3) // If pConnectTime is the amount of hours played. This should be: PlayerInfo[playerid][pConnectTime] >=3. I left it just in case it wasn't.
    {
        if(PlayerInfo[playerid[pRefunded] == 0)
        {
            PlayerInfo[playerid][pCash] = 100000;
            PlayerInfo[playerid][pMats] = 1000;
            PlayerInfo[playerid][pLevel] = 3;
            PlayerInfo[playerid][pDonator] = 3;
            PlayerInfo[playerid][pRefunded] = 1;
            SendClientMessage(playerid, COLOR_GRAD1, "Thanks for getting your refund! Enjoy!");
        }
        else if(PlayerInfo[playerid][pRefunded] == 1);
        {
            SendClientMessage(playerid, COLOR_GRAD1, "You've already been refunded!");
        }
        return 1;
    }
}

It's not tested, Try it though.