Face to face at home

My friends son as rang to ask for the assers report , and would be looking before he put in for a mandatory reconsideration, they asked him if he was sending any more evidence, he sent letters of his speclist to them when he filled in his pip , it stated that he need a new hip but would not be straight forward operation as it could leave him with a floppy foot , what more evidence can he send, have the DWP seen these letters or just the asser Thank you