Well you could always apply for a refund, but I highly recommend sticking to the script as the ban wasn't related to pest control and this script has the most features out of all the pest control ones. Agility has extreme (if not the highest) ban rates if not used correctly, I'm surprised you lasted that long IMO. As for the anti-ban, if you selected defend knight, confirm please. I made defend knight only fight near the knight, nowhere else, I intended for the script to wait to appear more humanlike as if it were defending near the knight, but I can always make changes 24/7. If npc mode then it is programmed to find any npcs, in that case did you select a low amount of npcs to fight?
EDIT:
Update v38 should be out within a few hours at best