My husband and I booked 2 train tickets to travel from Münich to Brussels on 8 August. The destination of the train was Dortmund (changing at Frankfurt). The departure time was 14.45 (Ice 622) When we arrived at the train station, we could not find our train on the information board. We were in a panic. Having spoken with your staff, they told us the train left early. This was still at 14.30. Then the staff told me to take the train at 15.05 to Dortmund (ICE 620). Currently we are on this train. We will miss our connecting train from Frankfurt and will need to take a later train. We will now arrive in Brussels at 23.35 (we hope) instead of 21.35. This has upset the arrangements we made to get to our house. We think it is not okay to bring the train departure time forward without informing the customer. We received no email or travel update. Everyone can understand delays but this is the first time I have heard of a train departing from a station before the time given to the ticket holder at the time of purchase. The remainder of our journey will remain stressful as we are travelling on tickets for different train times and feel we may be asked to justify this. I have attached screenshots of my tickets