Bus late and call center not picking up

I booked a city to city from grahamstown to cape town for the 28th of August 2015 leaving at 7:30pm. I waited for almost 3 hours and used over R300 worth of airtime while the call center kept me on hold. No one answered and therefore I did not know if bus was cancelled or if it was delayed. I had to go home as it is not safe to be out in the open that late with no idea what is happening. Seeing as the call center does not pick up and I have already wasted so much money trying to call, I need to know if they will refund me i have been very inconvenienced.