The US Embassy asked me to submit SEVIS form for F2 applicant

I am an F2 applicant. I have been asked to submit SEVIS form (F2). What I’m unable to understand how am I required to pay SEVIS fee if it doesn’t apply to me? Can anyone please help me with this?

You do not need to pay for F2 fee. It is very clearly written on the page Department of Homeland Security - Form I-901 . Write to them again and seek clarification. Check with your DSO as well.