The Advertising Standards Authority of Singapore received 304 pieces of feedback in 2021, inclusive of advertising advice (4) and consumer-to-business complaints (277), businesses-to-business (17) and feedback from government agencies (6). This represents a drop in complaints from 2020 (428) but a return to the levels that ASAS saw pre-2020. 

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As covered on MediaCorp Channel 8 news (in Mandarin):

https://www.8world.com/videos/news-bite/asas-advertising-1740641