People caring for older, seriously ill or disabled loved ones in Wales are missing out on £66 million in allowances.
Carers Wales say a lack of advice and education has left thousands of carers without vital financial support.
The Department of Work and Pensions says the system is being simplified to increase the take-up of benefits.
Alexandra Lodge reports
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A parent is arrested every day on suspicion of leaving one or more of their children at home alone, new figures reveal.