I tried partnership, trust, sole proprietors the last few times, but it failed. It also looks like the information that Airbnb submitted was that I have an individual account. Until now I have been unsuccessful in setting that straight, so my payouts are currently blocked.
When my Mandate was unsuccessful, I logged a querie on the bottom of the Mandate page, with the mandate reference number. SARB came back to me a few days later and gave me the correct info to fill in.
Recipient type: Entity
and Non Financial
Hope this helps. But you need to log a query, so that they can resubmit your Mandate.