Booked a ticket from London which I had to reschedule, which appeared to be all fine. I received an email from trainline advising me that my outgoing scheduled time had been changed from 09:33 to 10:33. This was done as an email subject only and when you clicked into the email, the subject of the email disappears. This is obviously so that as a customer you cannot provide the relevant information they request when you email them to complain. I arrived at King Cross to get my tickets at 09:50 to find that they were being printed with no longer valid on them and I was unable to catch my train. I had traveled from Australia to visit friends! I then put in an official complaint with Trainline and have had a yo-yo email conversation with them getting absolutely nowhere. They do reply very quickly asking for more and more documentation which as explained earlier, it’s impossible to provide. DO NOT USE THEM! It works out to be a very expensive mistake.