Avoid to buy tickets from this company

Ny son had a booking at eDreams with connected flights from two different companies. It is a risk, I know; however, he was told by eDreams agents that he has a Connection guarantee, meaning that if his first flight is late they will reschedule the connecting flights. This was not true. My wife immediately called the agent when I was informed that his first flight will be late (Cincinnati Chicago). She did not speak English well and she could not understand nor could articulate her thoughts in English as well. We waited for 40 minutes, than 30 minutes until she understood and until we understood her. She was constantly referring to stop over time of 13 to 20 hours, and after 30 minutes we understood that she was actually referring to the total trip time (oversees). and this was acceptable for my son. Until we understood each other and she went over to rebook, the company did not allow it because it was too close to the flight?! This is what she said. I called Lufthansa immediately and rebooked my self the trip for the day after. Absolutely the worst service ever... This company needs to be erased from the search engines on flights. I will personally contact each search engine to erase them from their bases.