For a short time 2 week visitor to South Africa on holiday what would be the deposit required

A Chinese woman wants to visit South Africa for a 2 week holiday. All costs would be paid for by the South Africa Host during the visit. This includes all flights and medical insurance.
The application can be submitted in Beijing. What would the applicant have to deposit for the visa application. She will return to China and would want to reclaim the deposit. Can details be provided to me. Regards Rod Pentreath