to do this he should have his father's profile on binance but since he can't access it he must provide documentation that he himself and the closest relative and that he takes what from it

I lost my father and am trying to file an inheritance appeal. I have sent all the required documents, using authorized translators and a notary. But it keeps telling me that some documents are missing. I followed the correct procedure and sent everything. How can I contact binasce to receive assistance?