Every point along the way has been a battle for the Bendigo mother - who, along with two children, has autism - to prove that her condition warrants help.

She wanted to secure "psychosocial" funding for disabilities arising from mental health issues.

New NDIS funding announced at the weekend would not help people like Mrs Flanagan, who has been repeatedly asked to prove the meet the eligibility criteria for funding, an advocate working with her, Rachael Thompson said.

The Rights Information and Advocacy advocate said Ms Flanagan's case was one she had not seen before.

"They accepted her onto the scheme, then gave her no support and then re-questioned her eligibility," she said.

Repeated roadblocks had seen Mrs Flanagan's mental health deteriorate, Ms Thompson said, with her husband having to stop work to help her and the children.

Mrs Flanagan applied for NDIS funding in 2017. By February 2018 her application had been denied.

She appealed the ruling and was promised a plan by the end of November, Ms Thompson said, but in January was told if she did not provide additional information her access would be revoked.

"No NDIS plan was provided despite the burdensome requests from the NDIS for additional evidence," Ms Thompson said.

While Mrs Flanagan's case was unusual, delays in funding arrangements were not, Ms Thompson said.

"There are so many cases where if one little thing goes wrong, then there are delays, and there's a spiral of one thing after another," she said.

"If it is complex, I don't know whether the NDIA puts it in the too-hard basket. If you make a fuss they will finally come and have a look at it, but if you don't it can get put on the backburner."

Saturday's $850 million NDIS funding announcement would not help Mrs Flanagan, but was "well-overdue", with more money going back into the scheme, Ms Thompson said.

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The funding would increase price limits for therapy, attendant care and community participation.

The changes would help disability services that had struggled to cover costs under the NDIS, but would not help people trying to prove they should be part of the scheme, Ms Thompson said.

Nor would it help people who would need to prove they should still have funding for mental health challenges, which could be less viable than other disabilities.

Last week, Mrs Flanagan had some good news. She secured a funding plan, even if Ms Thompson described it as "basic".

The plan would allow Mrs Flanagan to gather evidence and justify support for more funding.

"So hopefully she will get some level of support that she needs," Ms Thompson said.

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