I often have this issue - turn it into a positive - just say the more I know the better I can assist you can I ask you some questions. Or ask basic questions and suggest you do a report - 39 minutes on the phione at time that suits you. Works really well.
Both costume is need some proof that will not satisfied until they don't see all about detail from the Items that they will wanted but we can explain by our own way to slowly spoken to introduce that what we needed just follow and just consider about.