Flight delayed: JE156 18/04/2019

Hi Mango Airline,

I am travelling from Cape to OR Tambo, 18/4/2019 on flight JE156. My flight has just been delayed without any proper reason. I find it absolutely unprofessional, due to your delay I have to cancel an appointment and make alternative arrangements. There is cost involved and will lodge a claim against you for a refund. I further demand a full report on the "maintenance requirement" that was suggested in the first broadcast just after midnight this morning, is it not interesting the timing of this so-called maintenance, is this due to poor planning or poor management or is the reason for the delay something else?