No, I haven't heart back. I did check out the current prices and they aren't really back, they went up by 100 euro's per person, so not crazy. I stated clearly in the phone call that I won't accept a 24 hour time change because we have a hotel and rental car. But if they won't manage they'll have to cancel and I'll book something else, there are enough options left. I'm just glad I spotted it! We would have been on the airport 24 hours too late otherwise! If we have to book new flight, maybe our insurance could pay the difference.
The option I gave them was a day later, but my boyfriend doesn't really want that because his brother and family are flying to China and we're supported to have dinner with them the day we return, otherwise we won't see them before their trip.
Seeing that the website of the company we booked with did have the correct date and the fact that there are plenty of options still available really calmed me down, we'll get home someway or the other