VOMIT ON KULULA.COM SEATS! No Apologies, No cleanliness! Disgusting!!!

Took a flight from Durban to Cape Town on Tuesday, 30 October 2018. The seat right infront of me was disgustingly dirty with something which appeared as vomit. I was disgusted the whole flight, I couldn't eat or drink anything such that when I landed in Cape Town I literally threw up!!! Doesnt Kulula.com at least ensure that their planes are clean prior to passengers boarding??? I am still disgusted even by the thought! I am never hopping on Kulula.com flight again as they don't even care to even apologise about it!!!! No MORE!!!!! SIES!!! :(