Financier Amanda Staveley has filed an appeal over the High Court’s decision which denied her an award for damages in her case against Barclays.

Staveley's firm PCP Capital – which made a £3.25bn investment on behalf of Abu Dhabi’s Sheikh Mansour bin Zayed Al-Nahyan during Barclay’s emergency cash call at the height of the financial crisis in 2008 – sued the bank for £660m. Staveley claimed that she got a worse deal than the Qatari investors, who invested £2bn, during the fundraising because they received more in fees.