It states of donating unsold clothes to New Life.

pg. 4

"Our office sample sales raise money for our nominated charities and any unsold clothes are donated to New Life. In 2018/19 we donated an estimated 309 tonnes of stock to New Life, which helped raise over £400,000."

https://www.newlookgroup.com/esg-sustainability/responsible-product-and-circularity/product-and-production