London following a row with another member - who happened to be a top Department of Health official. Ms Mok, 44, who was unnvaccinated, rowed with civil servant Phoebe Topping over whether or not she had to quarantine after returning from a trip to Bulgaria last autumn.
The club - whose members have included the likes of British fashion designer Paul Smith and once made American actress Grace Kelly an honorary member - cancelled her member a month later.
Now Ms Mok, a self-styled ‘private investor’, is suing the Lansdowne in the High Court for £50,000 for ‘loss of privacy, injury to feelings and person, distress and damage to [her] reputation’.