The young royal allegedly racked up a bill of £30,000 as he partied in a palatial eight-room suite with his two friends, but didn't have to pay a penny according to a hotel source.

Billionaire Steve Wynn, who owns the resort and dined with Prince Harry at the hotel's SW Steakhouse back in November 2011, reportedly ordered that the royal party would not have to pay for anything during their stay.

Prince Harry and his fellow party-hard travellers stayed in the biggest and most opulent of the hotel's 16 suites, which comes with three master bedrooms, its own private lift, butler service, a room with a massage table, gym equipment and the now-infamous pool table.

Room 2401, on the 63rd floor of the five-star hotel, costs £5,100 a night and boasts a steam shower, 72in TV, chandeliers and a wet bar.

The walls are also padded with brown mohair which absorbs sound – meaning the group’s late-night antics were unlikely to disturb the neighbours. It is understood Harry's protection staff stayed in a separate suite nearby.

A hotel source said: ‘There is no way Harry was presented with a bill on his way out. That’s not Steve’s style. When Prince Harry is in Vegas, he stays at the Wynn.’

A member of staff said Harry’s guest account was locked and only senior executives with a password could access the details of his bill, but added: ‘I think we’re talking about it running to more than a couple of pages.’

It is understood that Prince Harry and his friends checked in through a private lobby and went straight to the SW Steakhouse to eat.

It is unclear who paid for the rooms used by the protection officers, but a source at the hotel suggested no one in the royal party was asked to pay anything.

By the end of their three-day stay, it is estimated the total bill would have been in excess of £30,000.

A source said: ‘Steve Wynn is very generous and he knows it is good business too. Any A-list celebrity would get the same treatment.’

Before his Las Vegas jaunt, Harry was a guest of Sir Richard Branson and his son Sam at their private Necker island in the Caribbean, and after Vegas, Harry stayed at a friend’s house in Malibu, before flying home to Britain.