paid for pre booked seats and seated in other seat

I pre booked and paid for 2 seats for myself and fiance to Cape Town and we were put in a totally different row?? There were a lot of peoplecomplainingas there was one big confusion. If I had known thisishow Kulula operatesI would never have paid for specific seats, or for that matter with Kulula. I hope our flight back will not be a mess as before. Veryunhappyand dissatisfied customer as this was all for mt fianc? 51st Birthday.