The website is misleading. When going through the booking process, I first selected an open return (ie return within the month). An option to buy a London travel card then became available, which I selected. Without notification, the travel card selection then converted my whole open return mainline ticket into a day return. I had to buy a further single ticket the next day to get home. The ticket office staff in London said this is a common problem with the trainline bookings. When I approached trainline customer service they refused to help saying that it was my responsibilty to double check my selection before final purchase. They did not bother looking into whether the website is misleading or difficult to navigate accurately and refused to give me any answer or explanation on this point. I will be looking for another travel website to book my tickets through.