Thank you for your patience and cooperation." หรือ "Thank you for your consideration." แล้วต่อด้วย "If you have any questions or concerns, don't hesitate to let me know." และ "I look forward to hearing from you." - See more at: http://thailand.englishtown.com/community/channels/article.aspx?articlename=184-email#sthash.1Q6bhTis.dpuf