Quote from kingarthur1983
my agency will pay for my visa fee while i am paying for my dependent visa fee... do you think it will delay my issuance of my visa if i pay my dependent visa fee when i have my interview?
Your statement seems unclear. Anyway, if I understood it right, you were asking if your visa issuance will be delayed when you pay during the consular interview?
You as the primary applicant will not be affected, however your immediate relative(spouse and/or children)might be.
I'm not sure about this one, but I've heard that if you want to bring your immediate dependent(spouse/children), you have to do it before packet 3. If you do it after packet 3, their visa approval will not be the same date as yours, instead, you will petition them as immediate relative of an immigrant. The wait is about 2-5 years(I'm not sure). So, you should have processed them together with your application, the latest being at packet 2. I don't know if your immigration lawyer can do something about it. Ask for professional legal help in your case.