It was one of the worst services that I have received. I bought three flight tickets and the first one was rescheduled by the airline; then the next two flights must be changed due to time conflict. only 5 days was left to my flight so I have to changed them quickly. I have contacted them via phone to change my flight. after long time waiting time, one agent registered my case. I waited for several hours, no action. Then again I called them; after long hours, another agent answered me and I had to explained the case again and he promised me to resolve it urgently. again, I waited for 4 hours without receiving any actions, I called it again, another agent answered me. when I asked the due date to resolve the case, the agent told me, it might be friday and they do not work on saturday and sunday. My flight is on monday morning. I complaint and she said it is an internal procedure and out of their control as a mediator because they have to wait for airline to response them. I argued with them for half an hour without finding any solution. then I decided to contact airlines directly and less than half an hour the two airlines rescheduled my flight. again I contacted mytrip, this time through online chat, to inform them that I have rescheduled them myself to avoid duplication. again i wait for 45 min for the agent's reply. I explained the case, she said I had to connect me to another department, wait another 45 min for second agent's reply, again i had to explain . she said it is not under her responsibility and connect me to another department. the same story. the case that can be solved in half an hour, takes about almost 1 day of my time. if I did not directly change my flight through airline, probably all my trip plan will be destroyed. never go with them