24 hour delay with no food, no accommodation, no compensation

My flight: Cape Town - Doha - Warsaw was delayed by 24 hours. After 6 hours we got the first update that we will not be going anywhere. After another hour, we were informed that all the hotels in the city were booked and that we were to sleep on the floor with blankets and pillows they handed us from the plane.

For 12 hours we did not receive any foor, only 2 small bottles of water. All the restaurants were closed by then because it was the early morning hours so everyone was starving. Then after 12 hours we were granted access to a lounge, but only for 4 hours before we were kicked out again into the departure hall.

According to their website we were supposed to be fed and accommodated in a hotel. Neither happened. On their website it also states that 600 Euro compensation is due to me for the delay, something they also denied.

Worst travel experience in my life. Never again.