June Kenton, the former owner of the lingerie company Rigby & Peller, lost the company its royal approval after she wrote a tell-all autobiography, Storm in a D-Cup. The book doesn't contain anything naughty.
"It is very sad for me that they didn't like [the book] and I'm finding that very hard to accept".
Recently, a longtime business associate of the royals made the devastating mistake of talking too much about a particularly intimate aspect of the monarch's life: her bra fittings! The book discussed meetings with the Queen and other noted members of the royal family at Buckingham Palace.
There are now about 800 holders representing a cross-section of trade and industry.
For centuries, royal warrants have been issued to trades people and companies who regularly supply goods or services to the monarchy.
"Shall I tell you what I do?" she was quoted as saying.
"I'm very sad Buckingham Palace took exception to the story - it's a kind and gentle story about what went on in my life", said Keller, according to the BBC. "That's between you and the customer". It has been reported the decision to cancel the warrant is linked with revelations in the book, though neither the palace nor the company would confirm that.
The British royal family is facing some drama this week as Queen Elizabeth has symbolically denounced her former bra fitter (or "corsetiere", to be official).
Who else has lost a royal warrant?
Buckingham Palace refuses to comment on any royal warrents.
"Sometimes the Royal warrants are withdrawn in spectacular fashion, such as when in 2002 Prince Philip, Duke of Edinburgh demanded that his warrant for Harrods department store be removed".
Rigby & Peller has nine boutiques across the United Kingdom including locations in Mayfair, Chelsea, and its flagship store in Knightsbridge.
The company - which has been supplying luxury lingerie since 1960 - added it was "not able to elaborate further on the cancellation out of respect for her Majesty the Queen and the Royal Warrant Holders Association".
Kenton has spent plenty of time with both the Queen and Princess Diana through the years.
"However, the company will continue to provide an exemplary and discreet service to its clients", it said.