They refuse to refund my deposit

Good day, on the date 28/02/2019 i visited Inspectacar dealership in Pretoria north Rachael de Beer street. I saw their advertised car on their website i decided to go and see the car same day i went i saw the car i was happy except for the sunroof it was not working, they said they will fix it will be sorted when i come back i had no problem with it, then i was advised to secure the car with a deposit by the sales person i paid a deposit of R20 000 to secure the car which the total amount of the car was R350 000 the aim was to buy it cash.

Then my partner did not agree with me she said the car was too expansive for us then i had to go back to the dealership for the refund of the deposit i paid using EFT, the dealer principal refused on the phone i went to the dealership in person to discuss the matter in person still he refused to refund saying that i promised them that i will come take the car the following week, then i explained to him the reason for the refund request he did not want to understand, i went again the next week he was not in the office and the car was still on the floor with same price tags and they made a sale on that car now where is the money i paid for the deposit because now they sold the car?

I googled the company's contact details wanted to escalate the matter to the heard offices for further assistance, i was directed to Mzwandile from west bank, i explained everything to him he asked for some time to contact the dealership and he couldn't help though i found him to be trying his level best to help then he phoned me and told to contact the Ombudsman and report the matter.