Saido Berahino, who plays for Stoke City, launched the Saido Berahino Foundation, which is not a registered charity according to the Charity Commission register, at a fundraising event in May 2015.
WaterAid said in a statement that it was approached by the foundation before the event, held at the Hilton Park Lane in London, and was under the impression that the charity would receive a donation.
WaterAid said: "The event was not managed or paid for by WaterAid, and attendance was by invitation only. WaterAid staff attended the event and we provided images and film for use on the foundation website, but made no financial contribution towards the event.
"It was WaterAid’s understanding that we would receive a donation from the event. WaterAid has not, to date, received any money from the Saido Berahino Foundation.
"WaterAid has not had contact with representatives from the Saido Berahino Foundation since March 2016."
According to a story published on the website of Berahino’s former club West Bromwich Albion at the time of the event, Berahino was raising funds for his foundation, but the story also clearly stated that Berahino was an ambassador for and "keen advocate" of WaterAid.
The story said that the event, which was attended by some of Berahino’s team-mates and the former West Brom player Cyrille Regis, included an auction of prizes.
A spokeswoman for the Charity Commission said: "We can confirm that the Saido Berahino Foundation is not registered with the Charity Commission. We are also aware that the charity WaterAid has confirmed that it has not received any money from the foundation. We will now be getting in touch with the foundation to decide whether there are regulatory issues we need to assess."
The Saido Berahino Foundation’s website is offline and nothing has been posted on its Twitter account since 31 March 2016.
The Philanthropy Foundation, which is a registered charity and apparently ran the foundation, has been reported in various media as saying that the foundation was not in a position to make a donation because the event did not raise enough money.