The page specified that proceeds would be used "for little Leon's funeral and (to) support the family during this very sad time". By this morning $4629 had been donated by 86 people.
But the money was not given to the family and on Monday an online petition was launched calling for Givealittle to release the funds.
"It seems now that the Givealittle organisation are refusing to release the funds to the family for reasons undisclosed ... the money was donated by the people for Leon's family," wrote petition organiser Tania Wright.
"This money is not for Givealittle to withhold. The family have requested that if the funds will not be released to them they would like for all those who donated to be refunded."
Givealittle spokeswoman Georgia Moselen-Sloog said this morning that after an internal investigation, started after "numerous" public complaints, every dollar would be refunded "immediately".
Ms Moselen-Sloog said the page creator confirmed verbally on July 20 and in writing this morning that ACC had covered funeral costs.
"Leon's mother petitioned Givealittle to confirm her as the beneficiary and payee, releasing the funds raised directly to her to take her other children on a holiday and purchase new items for a newborn baby," she said.
Ms Moselen-Sloog acknowledged the secondary purpose of the page was for "general support" for Leon's family. However, items for a new baby and a holiday were not considered appropriate.
"This use of funds is a material change and given [the ongoing court proceedings] we do not feel this is a satisfactory.
"This morning we advised all parties to this page that we have concluded our investigation and the decision is an immediate refund of all donations."
Ms Roberts could not be reached for comment.
When someone dies of an injury, regardless of how it is caused, their family can apply for an ACC funeral grant of up to $6000. It's understood that in cases where a life is lost as the result of a crime the Ministry of Justice can provide additional funding.