African Carder Bee on that mauve flower thing we can’t seem to identify.
Unlike many other megachilid bee species, this bee does not nest in the ground or in wooden holes, but rather it makes a “cotton-ball like” free standing nest from “hairs” it gathers from plant leaves and forms its nest inside sheltered locations such as wooden boxes or window frames: making them a perfect candidate for human transportation.
Got this info from an Australian site that considers this bee an invasive species. Couldn’t find any info on an SA site. Odd.