eDreams complaint: flight cancelled without telling me before

I was on the airport to fly back home, nobody found us (my husband, our childrenand me) on the passengers list for the flight from Las Palmas to Paris on the 2nd of august. After the agent called Air France, he told me that our flight from Paris to Luxembourg was cancelled. But nobody send me an e-mail to inform that the flight was cancelled! The agent on the airport said that normally i was send an e-mail on the 10th of june. But i had nothing, even in my spam!! I only had a ation from edreams on this date, for every flight i booked.
I received a bill, the money has been withdrawn from my account and i downloaded the app from edreams but even on this one the flight never had the status that it was cancelled!
We took the decision to fly to Paris, fortunately they still had enough space in the plane for us, and we called a Taxi to drive us home to Luxembourg, because there was no flight home until the 7th of august!
And you can imagine that with 2 children it is not the best solution you can have, to stay without any solution how to come home!
How this can be possible? Why i was never been told about the cancellation?
Why we were not on the passengers list of our first flight anymore?
How can i be indemnified, firstly for the flight which was cancelled and secondly for the Taxi we took?
Thanks for your answer.
Baulesch Tania
57c, rue de Waltzing
L-8478 Eischen
Luxembourg
[email protected]
00352661100482