durham

durham的申请表填完了之后出来这么一页
写着：In order for your application to be processed further, you must now submit the following supporting documentation, if you have not already done so.  
- Evidence of academic or professional qualifications (including transcripts where necessary)  
- Copies of English Language certificates (where appropriate)  
- Sponsorship/Scholarship letter/Financial statement (where appropriate)  
- References/Recommendation letters   
- Other relevant items (please specify)  
这个真的要现在马上给他寄过去吗？还是等收到conditional offer之后呢？