Desperate workers have allegedly left notes inside holiday cards, jacket pockets, and purses for years, begging for Western shoppers to send help

In 2014, a woman from Northern Ireland said she found a note in a pair of pants from UK fast-fashion retailer Primark alleging slave labor conditions at the Xiang Nan prison in China's central Hubei province, Amnesty International reported at the time.

"Our job inside the prison is to produce fashion clothes for export. We work 15 hours per day and the food we eat wouldn't even be given to dogs or pigs," the note said in Chinese.

Separately, in 2015, a man in Newcastle in northern England found a note stuffed inside his Primark socks.

The note was from a person named Ding Tingkun, who claimed that he was held at a detention center in Lingbi County, eastern China.

Primark said at the time it believed the note was a hoax "used to gain publicity for the plight of this individual," and that several other messages had appeared around the same time.

"The Primark name is being used to gain publicity for the plight of this individual," a representative said at the time. "We have found no link at all between this individual and any of our suppliers' factories in China."

Source: Business Insider

In 2017, notes started appearing inside the pockets of Zara garments in Istanbul, Turkey, claiming to have been made using unpaid labor.

The messages claimed that employees at the Bravo Tekstil factory in Turkey were not compensated, the BBC reported at the time.

The factory had produced clothes for big brands like Zara and Mango before it went bankrupt overnight in July 2016, the BBC said.

"I made this item you are going to buy, but I didn't get paid for it," one note read, according to The Cut.

A spokesperson for Inditex, the company that owns Zara, said at the time that it was working to find a solution, The Cut reported. The workers' current conditions remain unknown.

In October 2012, a woman in Oregon named Julie Keith found a note inside a pack of Halloween decorations bought at US retailer Kmart, The New York Times reported.

The note said workers in China "toiled seven days a week, their 15-hour days haunted by sadistic guards," and asked the buyer to resend the letter to international human-rights activists, The Times reported.

"Thousands people here who are under the persicution [sic] of the Chinese Communist Party Government will thank and remember you forever," the note also said.

Seven months later, a 47-year-old former inmate at the Masanjia labor camp in Liaoning, northeast China, admitted to writing the letter alongside 20 others, in the hopes they would be discovered by Western shoppers.

The prison is known to house adherents of Falun Gong, a spiritual sect outlawed in China.

In March 2017, an Arizona woman claimed she found a message in the bottom of a purse she'd bought from Walmart, according to Vox. The purse was made in China.

It contained messages written in Chinese, that said it had been made with forced Chinese labor.

"Inmates in China's Yingshan Prison work 14 hours a day and are not allowed to rest at noon," the note said, according to Vox. "We have to work overtime until midnight. People are beaten for not finishing their work."

Walmart said it had no way to proof if the message was real.

Six-year-old Florence Widdicombe found a note from someone claiming to have been a foreign Chinese prisoner when she purchased a Christmas card from Tesco.

The note told the recipient to reach out to Peter Humphrey, a former journalist who was detained for several years in China in the Shanghai Qingpu prison in China. Humphrey then reported the story for The Sunday Times.

The discovery of the striking note prompted Tesco to announce that all the cards had been pulled from its shelves, that it had suspended its use of the Zhejiang Yuanguang Printing factory which produced the cards.

Similarly, a woman from Essex, southeastern England, said she found a handwritten note in Chinese inside a box of Christmas cards from UK supermarket chain Sainsbury's.

"Wishing you luck and happiness," the note said in Chinese, as published by The Sun. "Third Product Shop, Guangzhou Prison, No 6 District."

Sainsbury's said at the time it was investigating the matter, The Sun reported.