I searched four tickets for china (London Heathrow to Shangai and returing from Beijing to London Heathorw in April 2019) on Skyscanner and after price comparison, I was diverted to Carlton Leisure. I tried to buy these 4 tickets but there was no baggage included in the price. I tried to buy the baggage but it will only allow me to add baggage to all passengers or no baggage. I wanted to add baggage for two passengers so I contacted Carlton to ask this question. I got through to an agent called "Ted" who forced me to buy tickets on the phone rather than online. He added baggage for two passengers and also managed to take extra £100 to make these tickets refundable. He asked me to pay on the phone and while holding, check the names and email him back to confirm that I am happy with the tickets. I paid him and also emailed him after I checked that names were spelled correctly. He issued me tickets and I found out that he issued me return tickets to Shangai, rather than return from Beijing. I contacted him but he refused to accept his mistake and charged me extra £585 to amend the tickets. I ended up paying £685 extra to Carlton compared to the price quoted by the Skyscanner and Ted did all this for his commission.