In February 2011, the Singapore Medical Council (SMC) presented a case to the Ministry of Health, in which Lim was accused of overcharging one of her patients, the sister of the Queen of Brunei, Pengiran Anak Hajah Damit Pg Pemancha Pg Anak Mohd Alam.[13][14] The fees were approximately $24 million SGD and were charged for 110 treatment days from January to June 2007. In August 2012, Lim was convicted of professional misconduct in respect of the overcharging, and was given a 3-year suspension from practising, fined $10,000 SGD and be censured in writing. Lim appealed her sentence and was allowed to continue practising, pending the outcome of the appeal.[15][16] On 28 June 2013, the appeal court dismissed her appeal and confirmed the sentence in all respects.[17] The SMC originally sought $1.33 million from Lim for the legal bills of the courtcase. The Singapore High Court found that the legal bills against her were inflated and reduced the amount from S$1.33 million to S$317,000.[18] The SMC appealed the decision and the courts eventually allowed for $825,000 in legal bills to be claimed from Lim.[19]