Protesters calling themselves “Busts 4 Justice” have targeted British retailer Marks & Spencer because of their policy for charging extra on some of their bras that are larger than size DD.

In a story posted on News.bbc.co.uk, the High Street retailer defended the policy, stating that the extra charge of around £2– was “standard industry practice.” However, around 900 protesters who joined Busts 4 Justice on Facebook.com as well as the group’s founders feel that the higher price is unfair since this pricing logic does not apply to other clothes items. “If you don’t charge a size 20 woman more for a pair of trousers, then why should you pay more for an E-cup bra,” says 25-year-old Beckie Williams from Brighton, who set up the Busts 4 Justice Facebook group.

A spokesperson for Marks & Spencer said that most of the retailer’s customers had no problem with paying a bit more for the larger bras. “Our bras are much less expensive than many other specialist larger cup size lingerie retailers, where they could cost around £60 or more,” said the M&S spokesperson. “(M&S offers) the most comprehensive DD+ collection and one of the most competitively priced on the High Street, (and offers) the same choice of colour, styles and shapes for all customers no matter what size they take.”

Though Beckie Williams agrees that £2 is not a large amount of extra money to spend on a bra, she still sees the increase as “an unfair tax”. The need for larger bras “is not something that we have chosen,” said Williams.