No deposit refund

Avoid paying a deposit. You might not get it back. I paid a R5000 deposit to secure a car, then arranged the balance within 2 days. The flawed payment system, Ozow, told me to pay the full amount. I tried to reduce it by the R5000 already paid but computer said NO. So I just paid the full amount knowing they would refund me the excess. Explained to the salesman. No luck. Looked for complaints on the website but you are not allowed to have a complaint. Only a "concern". So I explained again. got a call back so explained a third time. Got transferred to a sales manager who was the person responsible for overseeing the sale. He took forever to answer, but did, no doubt as he saw it was from the "concern" department. Explained a fourth time. He said he didn't know me even though I had had sent him an email. He said he hadn't read his emails, so I had to explain that I bought the car from someone who reports to him. Then he said he needed a copy of my ID and proof of bank account. I said I'd already given this to the salesman so all good. Another week goes by and still waiting. I really expected a quick response from this large and otherwise efficient company. Now three weeks after purchase. Disappointed.