Del Taco review: Shorted on my order

I order 2 fish tacos for my wife and 2 taco al carbon chicken and a vanilla shake for my self. First, I will start off stating that my they usually get my orders perfect and I applaud them for it. This order came up short 1 Chicken al carbon taco which was my order and I am left hungry. I know it was only $1 so I am not asking for any money back, just asking to be more careful with delivery orders. I did pay a $4.99 and gave a $ 5.00 tip based on the service and flavorful food.