Chilean Travel Agent

My South American trip is the first tour-packaged trip I ever done. The first 11 nights of the trip was booked by a Florida agency while the last 4 nights was booked by a Chilean agency.

Booking via the Florida agent was a breeze. I told her which package I wanted and provided my credit card, and that is it.

However, booking via the Chilean agent has been a nightmare. I emailed and called her daily during the trip and things still went wrong. She made flight reservation but did not purchased the flight tickets and did not notice this mistake until SIX hours before the flight departure. I ended up have to call the airline myself to book the tickets. She also changed the flight time without notifying me, so we ended up on flights that depart at 2am and 4am. Furthermore, during land excursion, I had to work individually with each local agents because she did not work out the transportation and tours logistics for us [even though she told us those were already taken care of].

Trip is completed but the nightmare continue. She overcharged $1,500 on my credit card; so now I am trying to work out this mistake with her over email. Argh!