French fries that tasted like simba chips

Nathan the manager of the Current restaurant at Cradle Moon, offered to exchange the 5x meals chips after we complained that they were hard and tasted like simba chips of which he also tasted one and agreed that they were not OK and took them away. When the bill came he charged us more for the chips that he offered to exchange and said we will not leave if we don't pay for the chips. Basically he threatened us in front of our kids.