Misleading, Impatient & Rude

I have booked a flight and hotel through this company before and I was expectant that it would be more than advertised because I was travelling alone. The sales agent told me I would have to pay for the 'other' person as it was a 2 person room in hotel so it went from a couple hundred to over five hundred. As I was not accompanied I thought that this must have been the best deal and price however when going through them again to book a holiday for over the New Years period I found a very reasonable priced one for £157 however when I rang to book this the sales agent told me that there was no way I was getting it for that price as it was over the holiday period and it would be over £300 although it being advertised as much under the price even after I had rang to book. I accepted that this might have been more money and I have today tried to book what looks an amazing deal only to be told by rude customer service people that the deal didn't exist even though I was looking at it and because of the lack of reference number he would ring me back once he had looked into however I never received a call. In my opinion the prices are much higher than advertised and the call centre staff are rude. Having not had a call back I tried the 'live chat' where I asked two different questions in which I got the same reply that to book or ask questions I need to call the 'travel experts' creating a very frustrating outcome for me.