thanks all
i have has low e glass installed but not the one i thought and paid for ie pilkigton glass
trading standatd tell me that i will have to prove that i have suffered financial loss for having different glass installed
for that i have to prove that guardian glass is cheaper tha k pilkigton
they took a case to court for similar misselling and the ruling went in favour of installer
i personally feel its blatant cheating but dont know what can i do
are all conservatory people so ethical