I phoned ***-***-****. I entered "*" for english, when I was asked for last * numbers...

I phoned ***-***-****. I entered "*" for english, when I was asked for last * numbers of credit card, I entered them. I could not be found.*I hung up and called again, entered my itinerary number, ************** and I was told that this number did not valid. I called back * times and entered this itenerary number and still the same result. Expedia has screwed up my return flight from Guadalahara so bad I cannot believe it. First they changed the date from Feb. ** to Feb. *****. They gave me a not bad flight back on the **th and when I received the email ithe flight was totally differend. I have a huge layover in Washington and I don't feel safe in the airport all night alone.*Also, I am blind and have asked expedia to get me assistance in these airports to find my gate....they have not helped me at all. They just tell me that United will not assist me.