Flight Centre - The worst travel experience I have had

I recently booked a historical tour of Greece, together with my son. After muddling through a very error prone process with the agent, which included them providing the incorrect documentation for the visa application, I discovered (once in Athens) that the return transfer at the end of the tour had not been communicated to the local tour operator. I spent half the tour chasing flight centre to try and get assisatance. The branch that took my booking would not help, the 24 hour assistance line said they could not help and I must deal with the branch, and the customer care department said deal with the branch. The stress of having an incomplete return journey and having to explain the issue over and over to each person/department to try and get assistance detracted from the experience of being on holiday with my son. Instead of paying attention to the tour guides and immersing myself in the history and myth of the tours I was spending my time on my phone to try and get the return journey resolved. When I complained to flight centre about the dreadful service they said they are sorry and will do better going forward. Avoid them like the plague.