New Zealand-born fashion designer Johanna Johnson, who counts Kendall Jenner, Christina Hendricks and Princess Charlene of Monaco as customers, is being sued for NZ$28,000 by a Sydney woman who has gone to the NSW Supreme Court to ask that her business be liquidated.

Christina Hendricks attends the 63rd Primetime Emmy Awards wearing a Johanna Johnson gown. / Getty

Sydney’s Daily Telegraph reports Alana Teasel, from Bronte, is suing the Sydney-based wedding dress designer for A$25,000 (NZ$27,940) and has taken the issue to the NSW Supreme Court to ask that her fashion empire be liquidated.

Johnson, who has dressed a multitude of stars including Madonna, Chrissy Teigen and Amal Alamuddin’s bridesmaid, Aussie lawyer Jennifer Robinson, at her lavish Venetian nuptials to George Clooney, has found herself embroiled in a legal dispute that may ruin her empire.

Ms Teasel reportedly won the case against Ms Johnson in November 2015 and asked for payment to be made in full, but is yet to receive the A$25,000. She reportedly gave the Kiwi fashion designer 21 days in December to pay the debt, but was “ignored” and is now asking the Supreme Court to wind up Johnson's entire company unless she pays up.

According to the Telegraph, the pair is listed to face off in the Supreme Court on Thursday when the matter is scheduled for a directions hearing. Teasel's application also reportedly warns Johnson that the matter could be decided by the court without her if she fails to turn up.

The news comes after Johnson has been criticised by some brides-to-be for creating "ill-fitting" bridesmaid dresses and offering "bad customer service."

Johnson, who is a mother of two young boys, Tommy and Charlie, saw her label stocked in dozens of retailers in the U.S. Her custom-made gowns and jewellery have been worn on many Hollywood stars, and even royalty.

In 2012, the New Zealand-born bridal and couture designer dressed Her Serene Highness Princess Charlene of Monaco, who was in Australia to open the exhibit,Grace Kelly: Style Icon, at the Bendigo Art Gallery in Victoria.

Johnson told this reporter at the time that dressing her first member of royalty was a "career highlight". The request, she said, "came through a member of the Princess' staff". The European royal had seen the label's look-books and was aware of Johnson's star clientele list.

Blenheim-raised Johnson, who lives in Sydney, said the royal request was "very special" on a personal level too because she'd always been an admirer of Princess Grace's style. "A picture of Princess Grace hangs on my wall,” she said.

It was a big accolade for the woman who went to Blenheim's Whitney Street School, Bohally Intermediate and Marlborough Girls' College, before moving to Melbourne and eventually Sydney, via a brief stint in London.

"It's really important to me that I'm seen as a New Zealander," Johnson said at the time.

"I had my schooling and upbringing in Blenheim, and I still travel on a Kiwi passport. I'm proud of my New Zealand heritage."

She counts Mad Men starlet Christina Hendricks as a fan. The actress wore a custom-made beaded vintage wedding dresses to the Emmy Awards that created so much interest in Johnson's label, her online store website collapsed after receiving more than 60,000 hits.

At Kim Kardashian and Kanye West's Parisian wedding festivities, bridesmaid Kendall Jenner - a model for the likes of Chanel and Marc Jacobs - chose a midnight blue satin sheath from the Kiwi's collection for her sister's rehearsal dinner at the palace of Versailles.

Bride Amal Alamuddin, who wore custom Oscar de la Renta as she said "I do" to George Clooney in Venice in 2014, saw her bridesmaid, Aussie lawyer Jennifer Robinson, choose Kiwi designer Johanna Johnson. Robinson and Alamuddin, both human rights lawyers, defended Julian Assange.

Now in her time of crisis, will Johnson see her celebrity A-list pals and royal followers come to her aid?