How to enter Surname if no name mentioned in passport?
In your passport surname is blank, then leave it as blank or type space value.
How do I enter accomodation details if not staying in Malaysia?
If you are coming from Singapore by road and you are not staying just one day visit, then you can enter blank address and upload an covering letter & mention that you are not staying anywhere in Malaysia. However all approvals are subject to Immigration Authority.
Can I Upload documents which takes from Mobile camera.?
No, You need to upload all documents are properly scanned from Scanner Device only.
Can i Upload Handwritten letter for Covering letter.
All documents should be typed from computer and scanned from Scanner device only.