I have my visa interview on 16 May and in the intended travel date I have mentioned 25 May. There is no way I could get my visa by then. I have paid the visa fees nd submitted everything. What should I do now? Fill in a fresh d160 will require me to pay fees again? And if I leave it as it is, what should I say in my interview about this and dates in invite letter. My purpose of travel is to have client meetings and knowledge sharing sessions.