Prince Harry and his girlfriend Cressida Bonas aren't letting distance get in between their relationship while the royal treks across the South Pole for the Wounded Warriors charity.

An insider told Daily Mail that Prince Harry used a satellite phone to contact Bonas, 24.

"Harry has been using the phone to check in with Cress. They miss one another terribly."

According to the site, Prince Harry also gave Bonas a bracelet from the Help For Heroes foundation before he took off for Antarctica. He has been wearing that bracelet for the past few years. 

Prince Harry, Girlfriend 2013 Cressida Bonas Invited to Prince George's Christening [PHOTOS]

Bonas was also spotted wearing one of Prince Harry's limited edition scarves from his Sentebale charity, a foundation that raises money for orphans in Lesotho, Africa who are suffering from AIDS. There were only a small number of scarves available and it's reported that Prince Harry snagged one for Bonas. One scarf costs $293.90. 

While he has been gone, Bonas is also said to be growing closer to the Duchess of Cambridge and Prince Harry's sister-in-law, Kate Middleton. 

A source said, "I think [Kate] regrets not finding a job to settle down to before getting engaged to William - the 'Waity Katie' tag still haunts her today. So [she] can talk to Cressy about that."

Prince Harry is said to be moving out of his one bedroom apartment at Kensington Palace into a 21 bedroom home, where Prince William and Middleton will be his next door neighbors. He is reportedly purchasing the home from the Duke and Duchess of Gloucester because they are moving into a smaller space. 

Tags: Prince Harry Cressida Bonas