By Gemma Strong The King is “hugely frustrated” that his recovery from cancer is taking a “little longer” than expected, his nephew Peter Phillips has revealed. It is understandably a very difficult time for the royal family, with both the monarch and his ‘beloved daughter in law’ Princess Kate battling the disease. And according to Peter – the son of Princess Anne and her first husband, Captain Mark Phillips – Charles is keen to get back to work after some time spent away from royal duties. The 46-year-old shared an update on the monarch’s recovery during an interview on Sky News Australia’s …