Oslo的邮寄地址选哪个？

mianerUID：3046124

我在Oslo的网站上看到：
“1.
The completed Attestation Form together with all the supporting documents must be sent to the following address:

Self-financing Master's application,
International Education Office - The University of Oslo,
P.O. Box 1081 Blindern, NO-0317 Oslo, Norway

2.
If you are sending your documents via courier, please use our street address:

Self-financing Master's application
International Education Office - The University of Oslo,
Lucy Smith Building Problemveien 7, NO-0317 Oslo, Norway”

请问各位大侠，雅思成绩以及supporting documents应该寄到哪个地址？1还是2呢？急啊，快到截止时间了

mianerUID：3046124

求解答。。。

cedricquUID：2294360

第二个地址应该是适用于直接用快递不经过邮局系统

bb55kkxxUID：2459781

第一个是平信，第二个是快递~