IIRC, you only can upload the documents after you add in the receiver then proceed to next step.
The system will asking you to upload bank statement, blah blah blah, depending on what money you claim.

Indeed you are right. After adding the receiver I could proceed to upload documents.

But then owner and receiver can't be the same person?
I upload my copy of IC for both owner and receiver section, but it says 'name fail telah wujud'. I have to change the file name to circumvent this error message.

just in.. haish.. must walk in only things happen.. submit online never informed me got problem.. if count from online submission 3 bulan dy.. but if count from my walk in 1 week

Got my unclaimed money already. Today just in after almost 4 months

Wow, that’s a quite some time to claimed that money

YA Took sometime. I thought wasn't going to receive it. But at the end received. Rm600 finally can renew my road tax and insurance.

For the application in behalf of my parents, do I need to register eGUMIS for both of them or can I use my account on behalf of them, with their details as the applicant?

Have to register for them

I understand a bank statement is part of the supporting documents to be uploaded. Does it need to be the latest month or can it be 2 or 3 months ago?

Thanks in advance.