No Service and poor client care

I Ordered 2 large pizzas telephonically. We made contact twice to confirm order for collection. The telephone line is extremely crackly and unclear. It seems they are Cutting cost with a cheap VOIP provider. The climax of my experience is that upon arriving for my pizza collection, that my order did not exist on their system and was obviously not made. Only to be told, "Sorry Sir it's the call centers fault". I can choose 10 other pizza take aways in my area, now this is why I won't easily choose Debonairs again soon. I never complain, but it's a terrible fail in a crackly system. How will you ensure this is corrected and that I am made to feel like a valuable customer in this financial crisis, especially for the Pizza industry?