The sitting arrangement caused Prince Harry to take his time responding to his coronation invitation.
According to sources who spoke to the Daily Mail, there was ‘transatlantic ping pong’ going on between Buckingham Palace and the Duke of Sussex on the matter.
According to a source who spoke to the publication, Harry’s side was eager to learn what the seating arrangement at the Abbey is, probably because they wanted to rubber-stamp it.
There has been much back and forth on who Harry and Meghan would seat behind if they attended. And who would be behind them.
Another source added: ‘This is true. There has been a lot of questions on detail for the Abbey.’
Harry reportedly had a list of questions for the palace and ‘assurances’ about what would happen if he did attend.
Front row seats at the coronation will be reserved for working members of the royal family, with Harry expected to play no part in the official procession.
But one insider suggested he could be given a more prominent position now wife Meghan Markle has confirmed she is not attending.

Meghan opted to stay at the couple’s California mansion with their children Prince Archie and Princess Lilibet.
Archie turns four on the day of the King’s coronation – which is likely why Harry is attending alone.
At the Queen’s platinum jubilee, Harry and Meghan were sat on the other side of the nave from Charles, Camilla, William and Kate.
The couple were shown to their seats without fanfare even before reports of the rift between family members grew stronger.
At the Queen’s funeral Harry and Meghan were then seated in a corner at the end of the second row.
There had been hopes the coronation would be a time of reconciliation but members of the royal family are reportedly not prepared to forgive Harry and Meghan yet.
Many are still said to be enraged about Prince Harry’s detailed book Spare which focused on the inside lives of the Firm.
William and Charles have had little dialogue if any with Harry since the Queen’s funeral.
Ahead of the coronation, it has been revealed Meghan received an invitation but Prince Andrew’s ex Sarah Ferguson has reportedly been left off the guest list.
Fergie, while invited to the Queen’s funeral, will only join the royals at a private gathering after its conclusion, despite disgraced Andrew being allowed to attend.
Buckingham Palace and Harry’s representatives have been contacted for comment.