The bank, which claims it is cooperating with the investigators, said that "an internal investigation into the specific allegations has not identified any evidence of misbehaviour by UBS Deutschland AG."[224] In 2014, the French government launched an investigation into UBS France's alleged abetting of tax evasion by French taxpayers.[225] The investigation estimated the amount of tax income lost to UBS-controlled offshore accounts at €600 billion.[226] In July 2014, the bank was required to post a bond of 1.1 billion euros, which UBS complied with while making multiple appeals in the French court system, finally losing its appeal at the Cour de Cassation, France's highest court.[227] That same year, UBS accused the French government of engaging in a "highly politicized process" in its investigation of the bank.[228]