tripres.com 800- 255-0372 unprofessional las vegas, Nevada

I made a reservation with this internet site.  It was a mistake.  I needed to change the reservation 45 minutes later.  The 3rd tier person, named Jerry, was beyond rude and threatening.  He decided he would not return the entire amount of my 3 day stay made through them. He yelled, screeched, almost, and hung up on me.   I then called the hotel found that the TripRes.com  had made the reservation and then very quickly after my phone call had canceled it.  I then made my own reservation with the hotel.  I called my Visa.  They have taken the charge off my card.  TripRes has 20 days to reply and dispute my dispute.  I also found tripres' address in Vegas, and wrote them a letter describing the treatment of their personnel.  When I get to Vegas, I plan to pay the office a visit.  Jerry the 3rd tier TripRes phone person also accused me of fraud.  I have at 70 years of age, never encountered such blatant unprofessional action.