Why not THAT day?

I booked a flight to a funeral (NOTE: once off, unplanned event) from JHB-PE using an Edgars Club card for 07-08 March 2015. On 04 March i received my confirmation e-mail. The flight was scheduled for 08h15, i was at the airport as early as 06h30. I confidently went to the check in counter where i was notified that the booking was cancelled on asking WHY, the lady said she doesn't know, all she knows is that they are experiencing problems with Edgars cards. No solutions were given to me as a stressed client (i was literally in tears with distress), all agents that came to have a look at the booking confirmation i printed all told me the same thing \the booking is cancelled. Edgars has a problem". My problem with this whole scenario was:<br> -Mango did not send a notification of the known problem"