Somebody, possibly a previous resident here, incurred parking tickets for a car registered to this address. I told DVLA the car shouldn't be registered here, and they've removed its registration from this address, but the parking tickets are still outstanding. Debt collectors came round today to recover the outstanding amount, fortunately while I was out. I phoned them to explain the situation and they said they needed to see a council tax bill to prove the person doesn't live here. I'm not keen on the debt collectors having any of my details, so don't want to show them the council tax bill. Obviously I want this situation resolved quickly, as I don't want this person's bad debt associated with my credit record. AIBU not to show my council tax bill to the debt collector? I really don't trust them, although I realistically don't know what they would do with this information to my detriment.