Changed seating without consent or comms/ being brushed off by We Care

I noticed that my seating for my return flights on the 18 Oct 19 > 31 Oct 19 to Cairo was changed by Egypt Air for a security person, without any communication to me or consent. I tried to change the seating and the system prompted me to pay for the change!! I subsequently got hold of Mohammed at the Parktown office and he was rude and said that he couldnt help me! He passed the buck on... I sent and email to *** and again I was brushed off by them and referred to *** OR make a call to their offices in Egypt at MY COST! I deeply regret booking with Egypt Air instead of Emirates whom I usually fly with, Egypt air really put such a bad vibe on the start of my long awaited holiday! I guess next time I should take the bad reviews inconsideration instead of giving companies a chance to proof that they are not as bad as people say! I will never use Egypt air again nor refer anyone to them. The only thing they are good at is passing the buck! We Care doesn't care.... I am deeply disappointed