[[EuG]ZeRoGoD]

Code:

 if(dialogid == 8) {
        if(response == 1) {
            switch(listitem) {
                case 0:
                {
                    if(GetPlayerMoney(playerid) < 2000) {
                    }
                    else {
                        GivePlayerMoney(playerid,-2000);
                        GivePlayerWeapon(playerid,22,100);
                    }
                }

thats ur problem well 1 of them :P