RoundTheWorldExperts UK

I was looking for a flight to Los Angeles when I was directed to Round the world experts, I filled in my details and I was contacted by a agent, I told him the best price I had found the tickets for was £3200 he told me that was a great deal I should take it as I will not find a better deal. I found a better deal and got back to him, he then informs me that he can get a better deal at £2700 adding £80 on for a later flight. He then asks if I needed a car, I say yes and I tell him the car I am after for 10 days he quotes me £416 not knowing that I have seen the same car for £208 already, I turn that down knowing I can get it cheaper myself. I go with the flight and I ask for details, the fact that he tried to charge me double for the car hire had me concerned, so I contacted the airline direct and get the tickets £500 cheaper, I understand he has got to make money out of the deal but £500 is a bit much.