In November 1822, the provisional Greek government at Hermione sent a letter asking him to return to them. He declined but joined the Greek committee in London (formed 8 March 1823) and contributed money and military supplies. He refused the committee's invitation to go to Greece as one of three commissioners in charge of stores and funds stating that the Greeks were unwilling to submit to European discipline. As a committee member, he strongly supported the appointment of George Byron, 6th Baron Byron.