Something

   case 2:     // (info->mapId, 0, LocationVector(info->positionX, info->positionY, info->positionZ));
        {
		uint32 price=10000000;//
		uint32 currentgold = Plr->GetUInt32Value(PLAYER_FIELD_COINAGE);
		if (currentgold>=price){
		int32 newgold = currentgold - price; 
		Plr->SetUInt32Value(PLAYER_FIELD_COINAGE,newgold);
                Item *item = objmgr.CreateItem( 100601, Plr); // Guild Key 1
                Plr->GetItemInterface()->AddItemToFreeSlot(item);
		Plr->SafeTeleport(451,0,15637.739258,-16175.264648,44.936722,6.273752);
        }else{
			Plr->GetSession()->SendNotification("You don't have enough money. Need %u Gold",price/30,000);
		}
		}

QueryResult * result = NULL;
result = CharacterDatabase.Query("SELECT Taken FROM guildhouses WHERE Id='1'");
uint32 Taken = result->Fetch()->GetUInt32();
           if(Taken == 1)
	{
                Plr->BroadcastMessage("This house has already been selected");
	}
      break;
    }
}