Airchina deserves 1 star
Air China has stolen 1350 € from us. We had to cancel our flight to Beijing because of the COVID-19 and asked for a refund, Air China did not provide any details, they decided to return 10% of 1500€ which was the total, so 150€ only and they are not even giving us a voucher for the rest! This is clearly a robbery and should not happen to anyone else. We will definitely never fly with this airline again.