What should I do if I've already submitted the required documents for my DTV remote work visa but received requests for resubmission?

Hi everyone, I’d appreciate some advice from anyone who has gone through the DTV remote work process.

I applied for a DTV under the remote work category while staying in Vietnam. With my application, I already submitted my employment contract, employer approval letter, proof of company registration, bank statements showing the required balance, and six recent salary slips.

Today I received a request for additional documents, and I’m trying to clarify their expectations. They asked again for salary slips and bank statements, which were already provided, so I’m not sure if they want updated versions or a resubmission.

They also requested income tax documents for the last two years (2023–2024). In my case, income tax documents are issued only after the end of the tax year. I did not work during 2023 and 2024 and only started my current employment in April 2025, so I don’t have tax forms for those years.

Has anyone been in a similar situation? Would a letter from the accountant of my current employer confirming my employment start date be sufficient, and what details should such a letter include?

Thanks in advance for any insight or experience you can share.