This is an absolute scam. I strongly encourage you not to use them. I bought a ticket to get from Lyon to London, with a layover in Paris. But it turns out that, while in Paris, I needed to buy a metro ticket and travel to a station 30 minutes away! Nowhere did the tickets say this. It just noted that I'd have an hour layover. By the time I realized that my tickets from A to B actually required me, on my own time, traveling from C to D in the middle of getting from A to B, I'd missed the second train. I asked customer service for a refund. They began by lying to me about info included in an email, and then told me that I should have realized that getting from A to B via their system would require an extra trip, on my own dime, from C to D in the middle. Do not use Trainline.