KLM should not be your first choice or any choice for an airline

I booked a ticket from Cape Town to Hanover about 3 months ago. I paid a R5000 surcharge to travel the fastest route which was with KLM. I logged in to get my boarding pass only to find that they have cancelled the flight from Amsterdam to Hanover (1 hour flight) and now I have to fly to Frankfurt which increases my travel time by 10 hours. As this is a business trip, I missed my first meeting. There was no prior communication and no compensation. It is so frustrating dealing with such airlines who don't really care. I know now who NOT to fly with. This is the worst service I have experienced from the Dutch