请教个申请的问题

问学校 admission的 review，是否需要邮寄 official的transcript， 和GRE，结果回信如下，请问到底要不要寄。因为网申提交了unoffical的photocopy of transcript and GRE。 打算拿到AD以后 在邮寄正式的成绩单。 要不浪费邮寄费和G的费用。
For your ECE application, you can upload unofficial transcripts and GRE scores. However, your official test scores and transcripts must be received by the U of XXX Office of Admissions before you can be admitted. I hope this helps!

求指点。谢谢。