I am currently in Mauritius having paid for business class seats for my wife and young daughter. I am not rich and this holiday was a treat for my family following my retirement. I spent over £17,500 for a 5 star holiday only for it to be ruined by BA. I am not precious about where I sit in a cabin however when I book as a family I do expect to be sat with my wife and child. I was not informed by my travel agent (Kenwood Travel) that I would have to pay extra to have an allocated seat. The tell me that BA is the only airline that does not allow them to request seats. When I went online to check in 24 hours before leaving I saw that we were separated across two cabins with my young daughter allocated a seat next to a complete stranger on an overnight flight. my wife was mid cabin and I was in a section separated by the galley. This is in my view outrageous. Again I am not worried where I sit in the cabin but I find it unacceptable that we are separated as a group, as a family. I was given no information by the travel agent or BA when booking that I have to pay extra over and above the £3,000 per seat so that I may sit next to my daughter. I rang BA prior to flying and they said that they could not allocate seats. My only recourse was to ask the check in desk nicely and they could move the seats around. on arrival at the airport I asked nicely and they moved us to three seats near to each other, two next to each other and one in a row in front. They said to ask again at the gate and they could try again.mThe gate was in chaos as the cleaning team was late and the flight was going to be delayed. They told us to ask on board. It turns out that the desk had allocated two people to seat 11D the one for my daughter. it was only aft threatening a scene did the purser admit that he would have to move three BA staff members who were sat together in business class! I nearly killed him as it seemed like an imposition. Before leaving I wrote a complaint to BA but have not had an email reply. More importantly I have just checked our return flights only to find that we are again separated across the business class cabin. I have called my agent to try to resolve this as I was on hold to BA for over 20 minutes from Mauritius. I will be speaking legal advice on my return if I am not arrested on route!