Unprofessional behaviour

I Boitumelo Davids booked 126 on Venice for the *** on the 22.01.2016. The booking was confirmed for the set dates. On the 28.01.2016 I called Alan De Kock informing him that I am going to make a deposit payment of R1800 witch I did. I emailed him the deposit slip and contract of the accommodation. Later on the 28.01.2016 he emailed me a confirmation of booking. On the 29.01.2016 Alan De Kock called me around 09h00 informing that he wont be able to assist me with the accommodation as he had double booked and he will refund me the money. I think he is not being honest because the other had booked last year, when I made online booking when the dates are booked they will be red written booked. Alan De Kock is lying to me and I feel that was unacceptable and unprofessional behaviour how can they take money and make booking within 24 hours everything has changed. <br> I need Alan De kock to deposit my money back immediately as I need to make new booking with the other facility.