What are the visa requirements for a South African passport holder staying in Thailand for 2 months?

A South African passport holder can enter Thailand with an automatic 60-day visa upon arrival. For the second 30 days, he can extend his stay at the immigration office. While an exit airline ticket is often required by airlines prior to boarding, it is rarely checked at immigration. Proof of funds is technically required, with 20,000 baht being the suggested amount in cash or its equivalent, although this is seldom requested.