An Australian-trained doctor whose “glittering” career came to an end in “disgrace” after she overcharged a member of the Brunei royal family by millions of dollars has forfeited her right to practise in the UK.

Britain is the second country to take action against Susan Lim Mey Lee, who graduated from Monash University’s medical school in 1979, with the Singapore Medical Council suspending her seven years ago.

It was while working in Singapore that Ms Lim — an expert in robotic surgery and a stem cell entrepreneur who performed Singapore’s first liver transplant — treated the Queen of Brunei’s sister for breast cancer.

It was discovered she had added hidden mark-ups to invoices that resulted in the patient, who was terminally ill, being overcharged by more than $15.7 million (£8 million), according to the UK Medical Practitioners Tribunal.