The full route is Chania (the city where I am staying) to Athens (operated by Aegean) to Doha to Jakarta and return all the way back to Chania. All booked in one ticket from Qatar's website.Did you start from Athens to Jakarta? Did you have the 30kg confirmed on your booking? Thanks a lot for your reply!!
Here is (part of) the ticket confirmation:
Even children (7 and 9 yo) have 30kg...
I recently took a similar route Frankfurt - Doha- Jakarta - Sorong with Qatar Air and Garuda in the standard Economy and also received 25kg @ Qatar Air. Seems to be standard. Also direct booking.
I also had to retrieve the luggage and check it again at both layovers in Jakarta. Same for the check in itself: I had to do two separate online check ins even though it is on the same booking.
Welcome to SB! I think collecting/retrieving luggage and checking them in again in Jakarta (or actually wherever you enter Indonesia first) before the next domestic leg is standard procedure so you clear customs at the port of entry.
No idea why you guys got 25kg. I've been doing this route with similar airlines (Qatar, Emirates, Etihad) for about 15 years now, and 30kg has been the standard for economy all this time.