By Scarlett O’Toole Meghan Markle and Prince Harry have been urged to “roll up their sleeves” and start working as their return to the Royal Family has been “completely ruled out”. The Duke of Sussex revealed plans to return to the UK after his father King Charles was diagnosed with cancer. It was believed his wife would join him for the trips. Royal author Valentine Low, however, said a royal reunion would be impossible after Harry and Meghan’s bombshell Netflix docuseries. In the show, Harry detailed the breakdown of his relationship with his brother Prince William and took aim at his dad. H…