I was being robbed, and agreed

Well I was standing in the airport waiting for a shuttle pickup, and these guys kept on coming to me asking me if I wanted a taxi or if I needed change. I was in bad need for change, especially that the airport in Algeria didn't have a change bureau like I imagined. I was reluctant to use their service, but eventually did. I guess I felt guilty on what foreigners experience in Egypt with haggling from people all over the place. I was feeling I am being robbed at the exchange rate, and with lack of information the feeling was stronger. I discovered that I had a lousy exchange rate in the end, but agreed to change money none the less.