David Cameron repeatedly pushed the Bank of England and the Treasury to risk up to £20bn in taxpayer cash to help Greensill Capital, just as the lender started to face “significant” financial pressure at the start of the pandemic. The UK’s central bank was urged to provide support to Greensill, including by setting up a fund that would buy loans made by the financial services company and its competitors, in a string of emails to senior officials. The exchanges, published by the Bank of England on Thursday afternoon, became increasingly desperate in tone as requests from Greensill for government backing were turned down.