CSC Type A Application – Missed Uploading Pre-Admit from Tsinghua, What Should I Do?

I recently received a pre-admission offer from Tsinghua University, but unfortunately, my CSC Type A application was already marked as “in-process” by then, and the deadline had passed. Because of this, I wasn’t able to upload the pre-admit letter to the portal.

I’ve already emailed my local dispatching authority to check if they can help attach or consider the document at this stage.

I’m also wondering if should I formally request Tsinghua to directly communicate or send my pre-admit to the CSC or embassy? Has anyone tried this route, and does it actually make a difference?

If you’ve been in a similar situation, I’d really appreciate knowing:

• Whether late document additions are ever considered
• If involving the university helps
• Any other workaround I might be missing

Trying to figure out the smartest next step here.

I am from India for context