auto buy problem

[meeayam]

Hi, im not really familiar with the bot setting. I am playing Malaysia Official Free Server. I'm botting in moc_fild17 and I wish to buy meat automatically when it is less than certain amount. Problem is that my bot will buy the meat 2 by 2 until it reaches the minAmount I set in config.
And I will not buy the exact amount until it reaches the maxAmount I have set. could anyone plz help me on this? thanks alot~!

here's my setting for auto buying:

buyAuto meat {
npc morocc 157 72
npc_steps
standpoint
distance 5
price 50000
minAmount 30
maxAmount 110
}