I bought a ticket to fly with LATAM tomorrow on Tripsta. A few minutes ago, when checking in, I discovered my flight was rebooked for the next day, and it was changed to fly through different cities.
I haven't received any information about this. If I hadn't checked on the website, I would have discovered at the airport tomorrow that my flight actually leaved 15 hours later.
In my case the new flight is actually better (it's much shorter) so I'm happy with the change, but if I wanted to complain to someone about lack of communication, is it the airline or the website where I bought the ticket?