: “William sent his birthday best wishes. There was some excuse made about why he wasn’t there.”
Buckingham Palace told the Sun Online this morning that it would not be commenting on the claims.
On Harry's big day The Duke and Duchess of Cambridge were seen making bagels at the famous 24-hour Beigel Bake on London's Brick Lane which was forced to shut during the coronavirus crisis.
Today's report comes after it was claimed Harry must have been "deeply hurt" by his wife being excluded from his birthday messages.
The Duchess of Sussex was notably absent from her husband's birthday pictures, shared by members of the royal family earlier this week.
The Cambridges tweeted a photo of Harry racing William and Kate at a Heads Together relay at London's Olympic Park in 2017 with the message: "Wishing a very happy birthday to Prince Harry today".
It's been reported the royal brothers apparently clashed when Harry’s quit as a senior Royal Family member earlier this year.
Things are said to have been made worse with the release of the book Finding Freedom – believed to have written with the Sussexes’ approval.
The "insensitive" biography accused Wills of being “snobbish” by referring to Meghan as “this girl”.
The actress was also dubbed “Harry’s showgirl” by a senior royal, while an aide warned she “comes with a lot of baggage”, the explosive book claimed.
In another outrageous claim, the book claimed Meghan was upset that Kate didn’t “reach out” when she entered the royal scene.
Wills was left particularly hurt by the claims as he has always been incredibly supportive of his younger brother, it's been claimed.
Harry has thrown himself into his new life outside of the Royal Family after he moved to the US with Meghan.
The couple recently signed a deal with Netflix rumoured to be worth £112m, revealing they wanted to create shows that "gave hope" to audiences.
Previously, Prince Harry must have been deeply hurt by Meghan Markle being left out of birthday messages, writer claims.
Earlier this week, Piers Morgan claimed Meghan had been "airbrushed" out of the royal family's posts.
Prince Harry has ‘put aside duty in exchange for cash’ - and Meghan ISN’T to blame, says Dan Wootton