The Victoria Derbyshire programme has learned that a 19-year-old mum had her child tax credits stopped by a private firm used by HMRC, after she was accused of being married to a dead 74-year-old man.

Hundreds of people are complaining they have been incorrectly punished by the US firm Concentrix, which is employed by HMRC to cut tax credit fraud and overpayment.

Throughout the programme we heard from viewers who had been affected.