Delayed Flight

I receive a message from Kulula on the morning of my flight that the flight has been delayed. It was supposed to leave at 16h25 and arrive at 17h30 and now it was departing at 17h10 and arriving at 18h15. This is the second time this has happened to me in the second time that I have flown back with Kulula. Absolutely shocking!!! I had a very important meeting at 18h30 so I called to ask how Kulula can help me so that I don't miss my meeting. Afterall this is their fault. I was told that the flight was delayed because of the previous day's fog. What has today got to do with yesterday? Then they were only prepared to help me on an earlier flight at an extra cost but this wasn't my error! Why should I pay for their mistake or delay. Never mind that they weren't even able to offer me another option to ensure that I can make my scheduled appointment. Something along the lines of giving me a front seat or make my luggage priority luggage. Their attitude was either I pay for an earlier flight or nothing. It is shocking that an airline as big as Kulula does not make any concessions for emergencies. It does not concern them for having a reputation for always being delayed.