Tried several times to book online for my wife and I using my credit card. The airline website requires a security check, which I allowed. But the system concluded that card is stolen and refused my payment. I called Visa, they haven't received any request from the airline. I called the airline agents several times and beg them to contact their IT about the problem. They are not understanding and cooperative at all. Very frustating experience!
Reserved seats?: Lately, some bargain airlines started selling "reserved seats" on the plane. However, the seats are all quite similar and even if you don't reserve a seat when you book your ticket you will still be able to choose your seat when you board the plane or you will be assigned one at the check in desk. So you can easily avoid paying extra money in order to reserve your seat.