KFC plumstead

I complained via email about a meal purchased and was called at 9pm yesterday by a customer care agent . They apologized and said they can't help me to be refunded because I don't have the meal anymore. This is a ridiculous and unacceptable policy , I have my proof of purchase and I would like to be refunded for the waste of time and energy and also the poor quality of the meal and service I was given . However I was told that they can only offer apologies as I don't have images of the meal. Surely this is not acceptable. I have logged a formal complaint and expect that this will be resolved appropriately. KFC is a waste of money .