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A Chinese restaurant offered perks to women based on bra size. Pictured above are people watching on as a lion dance is performed during Chinese new year inside a restaurant in Yokohama China Town Feb. 19, 2015 in Yokohama, Japan. Getty Images

A Chinese restaurant sparked controversy for reportedly offering discounts to women based on their bra size. A woman with an A-cup received 5 percent off, while a customer whose chest was closer G-cup could see a 65 percent discount on her meal.

Locals complained to city officials regarding posters suggesting discounts based on bra sizes in the Trendy Shrimp restaurant in a Hangzhou city mall, located in Zhejiang. One customer said the posters were "vulgar advertising" and "discriminatory towards women."

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The posters featured outside the restaurant showed cartoon figures of women in their underwear with the caption, "The whole city is looking for BREASTS." It listed discounts based on women’s cup size and claimed the bigger the size, the larger the discount, according to Qianjiang Evening Post Monday.

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A poster is pictured above Aug, 7.2017 of women's cup sizes. A woman with an A-cup bra could get 5 percent off her meal, someone with a G-cup could received a 5 percent discount. QIANJIANG EVENING POST

According to patrons, the restaurant installed the poster August 1 but removed it shortly thereafter as a result of complaints. Trendy Shrimp general manager Lan Shenggang justified the offers by claiming that the promotion increased clientele.

"Once the promotion started, customer numbers rose by about 20 percent," he told Qianjiang Evening Post. He added that the signs flattered some of the customers and said that "some of the girls we met were very proud, they had nothing to hide."

Shenggang said customers could "avoid embarrassment" by inquiring about the discount from a waitress, rather than asking the male staff.

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This wasn’t the first time Chinese customers received rewards at an establishment based on their physical appearance. A Korean food market in China reportedly offered free meals to customers deemed attractive in 2015, according to China Daily.

Customers thought to be the "best-looking" received free meals from the market based on opinions from nearby cosmetic surgery clinic staff. Market workers took pictures of customers for the cosmetic workers, who rated them based on aesthetic.

A month later, another Chinese restaurant reportedly offered discounts based on customers' weight. The Na Huo restaurant in Chongqing offered overweight men deals and discounts on food, while women received discounts for being thin, according to the China Radio International. The restaurant offered free meals to men who weighed an upwards of 308 pounds. Women who weighed around 76 pounds received a free meal.

Promotional photos posted to the restaurant’s social media page showed staff weighing customers.

"Na Huo restaurant cares about fat people and thin people. Bring your fat or thin friends, eat for free," the restaurant’s website stated.

Restaurant discrimination is considered illegal in the United States. Federal law protects any patron from being discriminated against based on appearance, according to the civils rights section of Find Law. Anyone who faces discrimination is urged to file a lawsuit with the U.S. district court.

"Federal law prohibits privately owned facilities that offer food, lodging, gasoline or entertainment to the public from discriminating on the basis of race, color, religion, or national origin," the website read.