Breach of contract and dishonesty

I booked a holiday through anytime holidays for Dikhololo Resort in North west in August 2018 for the 28-31 December 2018 4X6 Sleeper chalets booking for 24 People and I paid them cash within 48hours and today I get an email saying that my booking has been cancelled and they want to give me my refund back and I called the anytime holidays office spoke to a lady named suzan and she told me that there is a big problem at the Dikhololo resort and the resort has cancelled my booking I tried calling Dikhololo resort and their phones couldn't get through and then immediately I drove to Dikhololo to find out what the problem was and I was assisted by Lizelle and she verbalized that the information that Suzan gave me is incorrect they don't cancel bookings and have not done so at all and she immediately called Suzan to asked what is the problem and she mentioned that they have over booked clients and they had to cancel other people because other people have first preference... Is it fair that my booking has to be cancelled at this hour and why specifically my booking whereas I booked 4months ago and paid cash and now they say they can't give me an exact date of when my refund Will be paid back Suzan says there is nothing she can do for me.