Prince Harry and Meghan are seeking a reconciliation meeting with King Charles ahead of his coronation next year, it is claimed.
The couple reportedly feel they have been subjected to "double standards" and want the Firm to apologise before they consider attending the ceremony on May 6.
It comes after Prince William's godmother, Lady Susan Hussey, apologised to charity boss Ngozi Fulani for asking her where she "really came from" during a Buckingham Palace reception last month.
A source close to the Sussexes has now claimed the ball is in the Royal Family's court, although royal insiders believe there is "nothing to apologise for".
The unnamed source told The Sunday Times : "Harry and Meghan vocalised their concerns behind the scenes and it wasn’t acknowledged, and now it’s been done publicly and it still hasn’t been acknowledged. It seems there’s a difference in standards.
"The ball is in the palace's court.”
Meanwhile, a senior Palace source said: "If they want to get in touch with the King, they know where he lives."
The report comes as Dickie Arbiter, a former press secretary to the late Queen, claims the couple will not receive an apology from the palace.
He told the Today show: "If they [Harry and Meghan] are looking for an apology they are not going to get one because the palace don't feel there is anything to apologise for."
During the final instalments of the Netflix documentary released last week, the duke alleged his brother, the Prince of Wales, screamed and shouted at him during a tense Sandringham summit.
He also claimed Kensington Palace "lied to protect my brother" when it issued a statement denying a story William had bullied him out of the royal family.
In a raft of other bombshell allegations against his family, Harry accused his father, now the King, of saying untrue things when the Queen gathered them together at Sandringham in January 2020 in a bid to solve the Megxit crisis.
Ailsa Anderson, who served as communications and press secretary to the late Queen, reportedly said briefing against the royals would only harm the monarchy.
She told ABC's Good Morning America: "In the 13 years that I worked for the royal household, there is not one occasion where I ever briefed against another member of the royal family.
"It would be completely counterproductive; it would damage the institution. It would be wrong, and the Queen would not sanction it."
Harry and Meghan are rumoured to have signed a deal with Netflix worth tens of millions of dollars which has enabled them to become financially independent, one of their aims when they stepped down as working royals.
Just hours after the finale aired on the streaming giant on Thursday, the royal family put on a united front, with William and the Princess of Wales taking Prince George and Princess Charlotte to Kate's Together at Christmas carol concert.
And the King appeared relaxed on Friday when he enjoyed an impromptu dance with Eva Schloss, Anne Frank's stepsister, during a celebration of the Jewish festival Chanukah when he visited a Jewish community centre in north London.
