Hello, my name is***** am a qualified lawyer and it is my pleasure to assist you with your question today.
Are you and the agency in the UK?
Thank you. It would appear that you have a potential case for negligence against the agency because they had failed to inform you of the changes they had made to your travel itinerary. By making the changes themselves and by confirming with you that there were no further changes, thy have taken responsibility for this and providing you with incorrect information can make them negligent. That would allow you to pursue them for compensation for any losses you have incurred as a result.
The only way they could try and avoid it, which they have already tried to do, is to claim that you should have confirmed the itinerary yourself. However, for that to be a valid reason there must have been a specific contractual condition requiring you to do so. Check the booking conditions to see if this was a specific requirement on your part before travel. Even if there was, it could be possible for you to argue that by asking them to confirm there were no changes you had done as required. So overall, you would have a better argument that you should be compensated for this.
This is your basic legal position. I have more detailed advice for you in terms of the steps you need to take to pursue this further, which I wish to discuss so please take a second to leave a positive rating for the service so far (by selecting 3, 4 or 5 stars) and I can continue with that and answer any further questions you may have. Don’t worry, there is no extra cost and leaving a rating will not close the question and we can continue this discussion. Thank you