Simple and quick admin job for $500 - with ongoing work available

Must be South African national Must have a South African tax number (or be willing to get one by going to the office) I run a startup and am looking to work with South Africa. So I am looking for someone trustworthy and reliable to complete a quick online admin task for me. It won't take more than a day in terms of hours. The work doesn't require any special skills or technical knowledge but you do need to be based in South Africa. Pay is $100 at the start of the job and $400 afterwards. Would suit someone who has some flexible availability during the day and who can be available quickly via email. Trust and communication very important! Ideally you'd be generally available online via Skype or email and respond quickly to messages.