Shocking service

My fiance and i recently chose mango for our flight from capetown international to Johannesburg. The level of service we experienced was appalling. We were greeted at check-in by an unfriendly employee who promply informed us that our flight was delayed by 45 mins...unlike several competing airlines, they failed to notify us of this delay via email or sms. We were then told that we would have to sit in separate rows and not next to each other. As a final spanner in the works, they made a last minute and completely UNNANOUNCED gate change from gate A9 on the upper level to C10 on the loWer lever.....this only further delayed the flight, as several paying customers aimlessly wondered the halls of Cape tow international searching for the correct gate. We will certainly do our best to avoid mango in future.