I Paid for 20 Domino's Crispy Chicken Pieces but Got Only 19

I ordered pizza from Domino's and added a 20-piece crispy chicken side. However, I only received 19 pieces. I paid ₺80 for it. If I wanted just 10 pieces, why sell it as a 20-piece if only 19 are included? Did one of your staff eat it? This is completely unacceptable. It may seem like a small mistake, but it reflects poorly on the quality control of your service. I expect more care and accuracy, especially from a brand with such a strong reputation. Why am I paying ₺80 then? I do not give my blessing. I’m filing a complaint—this is not fitting for a well-known brand like yours.