我的也是 :Should you wish to withdraw your application, please inform us by either e-mail or fax. As sending this Document Request message constitutes the commencement of the assessment of your application there are no processing fee refunds. 发这封信就意味着你的申请开始审阅,费就不退咯。
后一种说法觉得像是传说中的劝退信,在补料之前的。这个是可以退款的。