* According to the source, complaints were registered on the website Reclame Aqui from Wednesday just before each year's Black Friday to January 31 of the following year. Within the periods analyzed, internet users could file a complaint and specify if their problem was related to an order made during the latest Black Friday shopping season.
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Black Friday: most reported problems by type Brazil 2020
About ** percent of all complaints registered on the Reclame Aqui website against online retailers during 2020's Black Friday in Brazil involved undelivered items. False advertising accounted for **** percent of the problems reported during that shopping season, while issues with returning or replacing products accounted for around percent of the complaints. Reclame Aqui is a Brazilian website that publicizes consumers' complaints on problems not initially solved by product and service providers.
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Reclame Aqui. (February 25, 2021). Problems most reported by online shoppers on Black Friday in Brazil in 2020, by type [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 22, 2026, from /statistics/1120150/brazil-black-friday-online-complaints-type/
Reclame Aqui. "Problems most reported by online shoppers on Black Friday in Brazil in 2020, by type." Chart. February 25, 2021. ÌÇÐÄÆÆ½â°æ. Accessed July 22, 2026. /statistics/1120150/brazil-black-friday-online-complaints-type/
Reclame Aqui. (2021). Problems most reported by online shoppers on Black Friday in Brazil in 2020, by type. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 22, 2026. /statistics/1120150/brazil-black-friday-online-complaints-type/
Reclame Aqui. "Problems Most Reported by Online Shoppers on Black Friday in Brazil in 2020, by Type." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 25 Feb 2021, /statistics/1120150/brazil-black-friday-online-complaints-type/
Reclame Aqui, Problems most reported by online shoppers on Black Friday in Brazil in 2020, by type ÌÇÐÄÆÆ½â°æ, /statistics/1120150/brazil-black-friday-online-complaints-type/ (last visited July 22, 2026)
Problems most reported by online shoppers on Black Friday in Brazil in 2020, by type [Graph], Reclame Aqui, February 25, 2021. [Online]. Available: /statistics/1120150/brazil-black-friday-online-complaints-type/