Hello aspirant,

I hope you're doing well, as for your query,

- I think its not possible now to upload the EWS certificate, as the details provided during the are verified during the cap rounds.

- You may try reaching out the official via mails, tell them about your problem.

- They may give solution about submitting the document during the document verification.

- Or you may reach the regional office to inquire about the problem.

- Lastly am a big of you Elon Sir.

I hope it helped you a bit

Have a nice day.