Pretty Little Thing job interview in Manchester

Hi, was just figuring out if I should take the interview offer, slightly confused. So I have been looking for a jobs since I graduated from my degree this year. I was looking for jobs ideally in or around London, as I'm in the fashion industry. And I really liked the idea of London as I studied near there, and developed strong connections and networks. However, I was also considering Manchester as a second choice, as its similar.
I've got an interview offer for Pretty Little thing in Manchester, they know I would be relocating. But they need me to travel to Manchester as there is a practical test. I usually request virtual interviews if its this far. Its one stage interview. My hometown is 4 hours away. So it would be costly and timely, especially if I don't get it. One time I travelled to London only for them to end it in 10 minutes and reject me after. I'm not sure if I should go, as I was wondering if its worth it and if I really want to live in Manchester.