Exclusive: The tragic story of Vannida Siriboon, the mother of missing schoolgirl Bung Siriboon, has taken a heart-wrenching turn. After a courageous two-year fight against cancer, Vannida is now living her final days.

In an update shared with 9News, the family disclosed that Vannida was diagnosed with primary central nervous system lymphoma in 2024. Despite enduring numerous chemotherapy sessions, she is currently receiving palliative care.

Family friends reveal that Vannida may have only a few days left, and there is a haunting possibility that she may never discover the fate of her beloved daughter, Bung.

“As these could be her final moments, you would hope that someone might come forward now to bring some solace to a grieving mother,” expressed Dyamai Hillard, Bung’s high school best friend.

In an effort to support the family during this profoundly challenging time, Hillard has launched a GoFundMe page to assist Fred, Vannida, and Bung’s sister, Pang.

Hillard has started a GoFundMe page to help Fred, Vannida and Bung’s sister Pang during this difficult time.

“Some answers would change everything, I think it would give Nid the closure and the space to pass on without that pain,” she said.

“And Fred, hopefully to heal a bit better because how do you go thorugh life missing your daughter and losing our wife, watching her pass away slowly?”

Bung’s stepfather, Fred Pattison, has also lost his niece and mother recently.

“The support for GoFundMe could even just ease a little bit of the burden so he could be present,” Hillard said.

“[It] could go towards a number of things, but most importantly help him be able to pay for her funeral.”

Siriyakorn “Bung” Siriboon vanished while walking to school in 2011.

She left her Elsie Street home in Boronia about 8.30am on June 2, 2011.

She was seen by a neighbour a short time later in Elsie Street, walking towards Albert Avenue.

Bung did not arrive at school that day and has not been seen or heard from since. Investigators continue to hold grave fears for her safety.

This year marks 15 years since the schoolgirl vanished without a trace.

There is still a $1 million reward for anyone who has information.

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