Delivered eaten food and refused to refund

On October 18, I placed an order with Mochachos Brackenhurst via Mr D.

Order came in very quick. One of the meals in the order was not satisfactory. The meal looked as though it had been eaten. There was hardly any rice in it and it splattered all over. I then instantly call Mochachos to notify them of my issue and asked that they collect their food as I was not going to be able to eat it. They said i should contact Mr Delivery as the order was placed with them, which I did. They responded to via email the next day saying they'd investigate and get back to me. I sent a follow up after some days and I have since been ignored.

As someone who orders pretty much every day using Mr D, I will not accept this kind of service. I paid for that food, it was not a donation. I basically paid them to bring me food that ended up in the bin. I've been waiting thinking they will contact me. I even continued to use the app while waiting. On principle, I am deleting their app immediately. I won't continue to spend my money a company that disrespects and disregards me. As for Mochachos Brackenhurst, I've let so many other instances slide. From your chicken which is always dripping blood, to the missing chips or the 7 wings you deliver when i've ordered and paid for 8. You guys are disgusting.