UPDATE.
Had a call off the client today - the manager has had 'his electrician' in and issued her a satisfactory condition report. The client has told me that she doesn't think the problem was cured (no major work done). The client is filing the certificate with the letter that i sent too her about the danger and why i didn't procede with the tests.
Tried to get her to read stuff off the cert too me, from what i can tell the reading's written on the cert are adequate one's ... if she was reading the correct stuff off, wasn't the easiest thing to try and do over the phone and because im sort of wanting to wash my hands with it i won't be going up there.
The question she asked me though was....
Even though she has a satisfactory certificate, if something was too happen (touch wood it doesn't) would she still be to blame because she's had a letter off another electrician (me) that contradicts the cert - even though the cert is 'satisfactory'
Can see a situation where if something was to happen, the spark will just say 'it was alright when i tested it' sort of thing - must of happened later yada yada yada.
I may be being unfair to the spark, for all i know it could have been sorted and correctly issued - im just not convinced after meeting the manager briefly, he seemed a real fly-boy.