USA L1 Blanket Visa renewal

I am on a non-immigration visa in the US under the L1 and my family are L2 dependents. We recently went to the US Embassy in Singapore to renew. Nothing much has changed except my role, though not significantly.

We were not told that we needed to physically bring one specific document (this was uploaded as part of the submittal) and was provided the first time round digitally.

The interviewer gave us back our paperwork, told us to submit the document via email on a sheet of paper he provided and sent us on our way.

It was confusing as there are two ways to submit on the paper. One by email and one by an online form. Both of them say to do it in different ways, as in the title/subject text and what to include in terms of passport id or case number, etc.

I chose the email approach. Submitted it a week ago and have heard nothing since. Not even an automated response. Is this normal?