Posting on Twitter, the organisation denied earlier claims made by The Sun that they had given the docu-soap star £20,000 to back their latest initiative:
Binky, whose real name is Alexandra, had posted an image on her Instagram account holding up a sign reading: "Please follow @barnardosretail on Instagram".
She captioned the post: "Something special happening with @barnardosretail today... Follow their account and watch this space!"
Countering The Sun’s original reported figure, Felstead posted on Twitter:
Horrified at the total lies in the Sun both for me and Barnados, sick!Alexandra Felstead (@BinkyFelstead) February 15, 2015
A spokesperson for Felstead told The Independent: "We can confirm that Binky has agreed to waiver her 3K fee. Her decision to work with Barnardo's was always for good intentions. She was offered this fee to front a campaign. However her intention has always been to give the entire fee back to charity in some way."
"Barnardo's retail shops are part of the charity's trading arm and as such operate in a commercial environment," the charity further added in a statement.
"We are soon to launch a new campaign to encourage much needed donations to our shops. We took a business decision to acquire the support of Alexandra (Binky) Felstead to bring the appeal to a new and wider audience.
"We expect the £3,000 campaign to increase donations significantly and will be monitoring its impact on our sales.
"Barnardo's does not usually pay celebrities who support our work with the most vulnerable children across the UK."
However, none of this stopped criticism of Felstead’s decision to accept payment from the charity in the first place.
Terrible 2 hear @BinkyFelstead accepted money 2 promote charity!! Do it for free or don't do it at all. Just disgraceful bad decision!Luisa Zissman (@TheLuluLife) February 16, 2015
@suttonnick People who take money to promote charities?! Either do it for free or, if you can't afford the time, don't do it.Kirstie Mary Allsopp (@KirstieMAllsopp) February 15, 2015
@BinkyFelstead No, I tell you what is sick, you accepting money from a childrens charity to help promote it, cos i used to do it for nothingDolbs (@millwalldolbs) February 16, 2015
But Felstead is by no means the only relative name to accept a sum in exchange for a charity campaign.
International children’s charity World Vision admitted it rewards its 'artist ambassadors’, and said it had paid Downton Abbey actress Elizabeth McGovern’s band, Sadie and the Hotheads, £28,000 for their "time and resources".
"Very often charities say they spend no money on celebrities, but they do not take into account the marketing spend, which is hidden," a spokesperson for World Vision told ThirdSector.co.uk last year.
In 2007, Terry Wogan famously waived his £10,340 fee for hosting Children In Need after his annual earning was made public.
However, a statement in BBC internal magazine Ariel read at the time:"Children In Need has never paid the fee to Terry Wogan. It is paid for by the BBC and does not come come from the funds of the BBC Children In Need Telethon."
His co-presenters, Natasha Kaplinsky and Fearne Cotton, had never been paid for their appearances.