Campbell’s spokesperson said on 4 October: “Naomi has never claimed to be a representative of Unicef.

“In 2018, Naomi was invited to meet then foreign secretary Boris Johnson to discuss a new #LeaveNoGirlBehind charitable initiative focused on girls’ education in the Commonwealth.

“Following the meeting, the Foreign, Commonwealth and Development Office drafted and issued its own press release that erroneously referred to Naomi as a Unicef envoy.”

Campbell’s spokesperson said that “for over three decades, she has dedicated herself tirelessly to charitable causes, always with the sole intention of helping others and never for personal gain”.

The statement also said that while the charity Fashion for Relief had been in talks to collaborate with Unicef in 2019, it “did not go ahead”.

It added that discussions continued for a collaboration in 2020, but that “the Covid-19 pandemic occurred and the and the 2020 event did not go ahead”.

Campbell’s spokesperson also said she has “never received payment for her involvement with Fashion for Relief, nor has she billed any personal expenses to the organisation”.

They added: “As previously announced, Naomi has initiated a legal review of the situation, which is currently ongoing.”

This article, originally published on 2 October, was updated on 4 October, to reflect a statement given to the BBC by a representative for Naomi Campbell.