Kensington Palace has denied a report that Kate Middleton was angry with Meghan Markle over how she treated Kate's staff, PEOPLE confirms.

A source told the U.K. newspaper The Sun that ahead of Meghan's wedding to Prince Harry in May, she was rude to Kate's staff, and that afterward, Kate told Meghan that the way she had behaved was “unacceptable.”

However, the palace, which typically does not respond to speculative stories, denied that the argument had taken place.

“This never happened,” a Kensington Palace spokesman said.

The palace declined to comment on any other reports, including the recent report that Kate was “left in tears” after a fitting for Princess Charlotte's bridesmaid dress ahead of Meghan's wedding. However, PEOPLE confirms that incident did take place.

Although the palace chose to respond to the report about Kate and Meghan's alleged “feud” over Meghan's treatment of staffers, they said that they will not be drawn into additional reports.

Several insiders have told PEOPLE that there was a notable amount of “stress” surrounding those involved in the wedding.