Ah, the joys of Islington Council. Only took an official complaint, an escalated complaint and then a series of further emails to the Chief Executive’s office to get this fixed.
With the curious discovery along the way that correspondence which says “please treat this as an official complaint” does not always get treated as a complaint. Which makes the veracity of the official complaints figures from Islington Council seem somewhat questionable. So far, my questions about why such correspondence is not treated as a complaint have gone unanswered.