I took out PII (which ends up labelled as Landlord Insurance as it uses the same link).
The purchase was on 09 Dec 2016 with an expected date of 01 May 2017.
Once this date was missed a date of 20 My 2017 appeared... but the cashback amount has reduced.... a reduction from the amount advertised at the time of purchase.
Now the expected date has disappeared once more.
Given that the cashback was a key part of my choice of provider I'm starting to feel conned by Direct Line.