https://www.whatdotheyknow.com/request/720924/response/1766461/attach/3/FOI2021%2000223%20Final%20Response.pdf?cookie_passthrough=1

In April this year the Post Office refused a Freedom of Information Act request regarding the Post Office multi million £ fraud as being “vexatious”.

https://www.bbc.com/news/business-55271193