The England cricketer organised the auction in order to raise funds for those affected by the floods in Australia. However, writing on Twitter Pietersen expressed his shock to discover that the the winning bid was not genuine.
He wrote: "I would love to expose the person, but not sure its the right thing to do! What goes around comes around people.. Its just so disappointing (sic)"
However, Morgan was determined to help the cricketer raise the cash and asked his followers on the social-networking website to convince celebrities to donate up to £2,000 each.
The former tabloid editor has confirmed that donations have been made by: Lord Alan Sugar, Phillip Schofield, Kirstie Allsopp, Andrew Flintoff, Chris Moyles, Michael Vaughan, Calum Best, Frank Lampard, Chris Evans and Peter Jones. The current total raised stands at £25,000.