Do not even dare to browse for flights. They will charge right away. I put my credit card information initially to freeze a flight. Try to contact customer service via email, and you will have to wait because support is based in the Philippines and there is a 16 hour time difference from where I am. No contact number. If the transaction no longer exist, you will not be able to contact customer support. I have 4 transactions that I never authorized and now I cannot reach any of them.