I would suggest that when making reservations online it would be advisable to read the RULES AND RESTRICTIONS. If youre hesitant on your booking then dont book it. Keep your eyes open to all
disclaimers specially since youre entering your credit card info online just dont go about booking since you feel like it and then later you would change your mind and start blaming everyone when its you on the first place who should be blamed. I mean duh its as simple as deciding on what you really want . Plan ahead better yet make your reservations directly with th hotels, airlines or car rental companies. Saves a lot of time specially when you feel like changing your plans again and when it involves CHARGES. At least you wouldnt be given run arounds if you book directly with the vendors. Dont complicate your lives with trying to get the cheapest rates sometimes it is not worth the hassle.