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!
Use online check-in: Most lowcost airlines now offer passengers the possibility to check in online for their flight. In most cases you can check in online only if you have no hold luggage. However, some airlines do have a special bag-drop desk for passengers who wish to check in online and to take hold luggage with them. By checking in online, you will avoid queuing in order to check-in at the airport (and you will probably also save some money).