JohnFrost55

Hey guys..I need help. I have a 2017 Audi A3 Quattro Sline Premium Plus. It was in an accident. I have replaced the necessary airbags, all except for the knee airbags. I have a vcds cable from Ross tech that will allow me to rewrite codes and make adaptions. However at this point it asks for my cars specific 7 digit number. I reached out to Audi who “for safety reasons” won’t give it out. I’ve read all of the forums I can..how can I go about finding this? Any help is appreciated