It comes after the charity was dissolved and removed from the register of charities in the UK earlier this year.
Announcing the results of an investigation it began in 2021, the watchdog said it had recovered £344,000 and protected £98,000 of charitable funds.
The commission said it found no evidence that Fashion for Relief’s trustees took action to ensure that the money the charity spent was reasonable relative to its income.
The expenditure discovered to be misconduct or mismanagement by the trustees included €9,400 (£7,800) for a three-night stay in a five-star hotel for Campbell, as well as €7,940 (£6,600) spent alongside the stay on spa treatments, room service and the purchase of hotel products and cigarettes.
The regulator said that the trustees failed to show how these were “an appropriate use of the charity’s resources”.
The disqualifications mean the three women are prevented from being a trustee or holding a senior role in any charity in England and Wales for five years.
Representatives for Campbell have been contacted by The Telegraph.