Welcome to the forums! Seems they have a bit of thing for not knowing common problems. My car was originaly sold and serviced by Sewards and had a leak in the boot. Only on the paperwork it liettraly says "Repaired but still leaks under heavy pressure"
Erm, that's not fixed then is it?!
Took nick at Austins and a windscreen guy they use an hour, new clips and all was sorted no more leaky boot