H1B, H4 Visa

Hi,

I have attended interview in March 3 rd week for h1b .I have been given 221g blue slip asking for Sow document,status of project,deadline of project, employees count of that project etc;

I have got the query on the day of interview and they asked employer to send the documents .

My employer is about to submit the document for that query mentioned above.

However I have got another query on my email recently ,asking for tax documents from end client .They have attached the 221g document and asked me to submit it.

However when checked with employer , employer said tax documents for endclient may not be given and confidential. Employer said they will provide document explaining that they can't provide tax documents for end client on behalf of me.

My concern here is,can they reply for tax documents from endclient query on behalf of me .

Can some one please suggest me here.

Thanks