On 3 August 1780, Arnold obtained command of West Point. On 15 August, he received a coded letter from André with Clinton's final offer: £20,000 and no indemnification for his losses. Neither side knew for some days that the other was in agreement with that offer, due to difficulties in getting the messages across the lines. Arnold's letters continued to detail Washington's troop movements and provide information about French reinforcements that were being organized. On 25 August, Peggy finally delivered to him Clinton's agreement to the terms.