'Repeat Reports' are taken extremely seriously by our hierarchy here at Openreach.
Whenever a task is received via the work-manager system on the engineers i-phones, there will be a number indicator of how many times the circuit has previously been reported, this method of delivery has only been available for a couple or so years though, so not sure what timescales are included in the report ??.
Once a certain threshold is breached, these kind of tasks tend to get captured by our triage teams who will liaise with the local patch manager and agree to despatch a senior engineer/patch lead to try and get to the root cause of the issue.
This can also be escalated via the well-known 'Chairmans office' route.
On a line of your kind of length, Weaver, and the terrain it's routed over plus inclement weather situations .... then circuits of this nature are always going to be more susceptible compared to a newly ducted housing estate around the corner from the Exchange.
Also, it all depends on what 'you' perceive to be a fault condition ?? We have to work to a 'Cone of acceptance' regarding broadband issues, if the electrical tests, the FT2 tests and DSL Close-out tests pass and your PSTN is audibly noise-free, then our remit is met, so to speak.
We can't be chasing 1B swings in SNR.