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- Australian billionaire Gina Rinehart asked for a portrait of her be removed, reports said.
- Rinehart wanted Vincent Namatjira's painting of her taken down from Australia's National Gallery.
- Gallery visits have surged by 24% since the first stories on the issue emerged, its director said.
Visitors to the National Gallery of Australia have surged by 24% since reports first emerged that the country's richest person had tried to get an unflattering portrait of her taken down, the gallery's director has said.