Husband of Indian-origin nurse Jacintha Saldanha, Benedict Barboza, second left, speaks to the media as his son Junal, 16, left looks on and daughter Lisha, 14, second right is comforted by Member of Parliament, Keith Vaz outside the Westminster Cathedral in London after a memorial service for nurse who took her own life after answering a hoax phone call at King Edward VII hospital where she worked. (AP Photo)
Saldanha's husband and two children have also received no answers from Australian radio station 2Day FM, which was behind the prank, despite sending the broadcaster 20 questions before Christmas.
The radio station's parent company, Southern Cross Austereo, has written back, merely stating that an official inquiry by Australia's media watchdog was under way.
So far, Southern Cross Austereo has not made any attempt to contact Saldanha's family to express their condolence or apologise for the hoax call, which has received international condemnation.
Saldanha, 46, was the duty nurse when DJs Mel Greig and Michael Christian called King Edward VII pretending to be the Queen and Prince Charles, asking about the Duchess's condition.
She forwarded the call to another nurse, who divulged confidential medical information about Kate.
The prank was broadcast by 2Day FM within hours, and made headlines around the world.
Saldanha was found dead on December 7 last year in the nurses' quarters three days later, having hanged herself with a scarf.
Her accountant husband Benedict Barboza, 49, son Junal, 17, and daughter Lisha, 14, sent King Edward VII hospital 40 questions before Christmas, in their search for answers.
But hospital chief executive, John Lofthouse wrote back, saying he could not give detailed answers as an internal inquiry is being conducted by the chairman, Lord Glenarthur.