David Richmond owes the council more than £3,500 after being overpaid housing and council tax benefit - without knowing.
Nottingham City Council blame new procedures brought in by the government for the delay in updating people's records.
Nottingham City Council say they've not been able to process people's changes of circumstance quickly enough, after a new government system was bought in.
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“Looking back now it’s only just dawning on me that I could well have died in there.”
The McCanns said they will do "whatever it takes for as long as it takes" to find their daughter, ten years after her disappearance.