Felix cat food for my cats (Bonnington EH6 5)

Hi, I have two senior cats, Pepe and Ponyo. I'm currently on UC and also working part-time. Unfortunately my salary swallows up my entire UC allowance (I only receive half my rent and £0 living allowance as payment). My salary alone just covers the monthly bills but leaves nothing for food for ourselves (we attend a food bank once a week) and no money left to buy cat food. I am able to pick up cat food from Dog & Cat home once a fortnight but they themselves are short on food donations and there's just not enough left for charity. Last time I received cat food covering 3 days worth. I don't want to rehome my cats as they are my family. I am appealing to the public for any Felix cat food they may not want anymore. I am asking for Felix as my cats refuse to eat other brands. It's a big worry, especially when Pepe (black cat) has a medical condition and is on medication. I'm afraid to ask but I see no other choice. I've received nasty messages on Facebook in the past. Anything you can spare I would be grateful for. I don't have a car but can take the bus to collect. Thank you for reading.