Anxious brokers are forcing clients to stump up cash against positions on the results of Britain's European Union vote.

Travellers have accused budget airfare website Bestjet of misleading behaviour, saying it is cancelling reservations and asking for more money for new flights.

The regulator has two months to decide who it wants to upset more: News Corp, or Google and Facebook

It is not the first time supermarkets have been targeted by the ATO.

Corporate Australia would do well to study the way supermarket giant Coles handled explosive allegations of “unconscionable conduct” that will include a review of up to 220 suppliers with combined sales of $660 million.