Egypt Air - You are simply RUDE and dont care about your clients

Our family a group of 12 decided to fly with Egypt Air fto get to our holiday destination. What a disappointment it was, 1st leg of flight was average and then it all just went down hill. Seats that we paid and booked long before the time were not correct, family were supposed to sit together we were all over the place. Seats were booked so my 12 yr old daughter and wife did not have to sit next to strange men. when we complained on the plane we advised they can go sit right at the back of the plane as its empty only for them to be told mid flight that its for the cabin crew to sleep. On the home leg they sent an email 48hrs( i believe this is sufficient notice time in industry standard we were told by the rude staff) before our depart date that the plane has been delayed from the evening to the next morning 5:45am, only for it to be delayed another 90min as they were waiting for the plane to travel. Once on the plane, again our paid seats were not allocated as it should with family scattered all around the plane.(yes we should have checked the tickets when we checked in but paid seats thought this was sorted). was really not a great experience. we Flew with Egypt air 3x in the past no issues but this time round from ground crew, to management, to cabin crew they all disappointed. Already planning our next holiday guess who we not flying with.