Cat sitter in London

I love cats and always grew up with them in the house. Sadly I now live in a flat that is too small for a cat and I definitely miss having one around. My parents currently have one cat, Simba, who I always give a lot of attention to whenever I visit home. I'm working in London as a psychologist so I'm available in the morning, evenings and at weekends. I can look after multiple cats at once and I have a lot of experience caring for young kittens and elderly cats. I will play with them and give them a lot of strokes, or just let them have their own space if that's what they prefer. Happy to do other small jobs alongside where reasonable e.g. watering the plants.