Been happening for years, cries for help.
https://www.usatoday.com/story/money/business/2017/05/02/mystery-note-jacket-may-point-china-worker-abuse/101219820/
https://www.businessinsider.com/workers-sos-notes-retail-items-tesco-zara-saks-2019-12
https://www.cnn.com/2014/06/26/world/asia/primark-chinese-prison-labor-note/index.html