stress for claimants and additional costs for food banks and other support organisations. Four single mothers, with assistance from the Child Poverty Action Group, took this issue for judicial review at the High Court, which in 2019 ruled the DWP had made a "perverse" and incorrect interpretation of the 2013 universal credit regulations. The DWP had argued it would be expensive to change their computer system to fix this problem. In June 2020 the DWP lost an appeal, where it was ruled that this was "one of the rare instances where the secretary of state for work and pensions’ refusal to put in place a solution to this very specific problem is so irrational that I have concluded that the threshold is met because no reasonable [minister] would have struck the balance in that way". The DWP decided not to appeal further and to modify their systems to comply with the ruling. In July 2020 the DWP lost a further case where the claimant was being paid on a 4-week cycle which interacted badly with the monthly cycle Universal Credit was designed for, causing her to lose up to £463 some months through the incorrect application of the benefit cap. Criticism Universal Credit has been and is subject to many criticisms. Louise Casey fears recipients could become homeless and destitute. According to official figures 24% of new claimants wait over 6 weeks for full payment and many get behind with their rent. Research by Southwark Council suggests that rent arrears continue when tenants have been on Universal Credit a long time. A DWP report, released in February 2022, (after months of delays and Conservative government attempts to dilute findings) admitted 'major unmet needs' amongst disabled claimants. Disabled claimants are often forced to use Personal Independence Payment (theoretically for mitigating costs of disability and available to both in and out of work disabled people) to cover cost of daily life as Income Replacement benefits are generally inadequate. Whilst carers (those providing 35hrs a week) can claim Carers Allowance (April 2022 rate £69.70) this is then deducted from UC award, despite mps acknowledging carer's face londer period on benefits and therefore higher basic costs. Claiming carers allowance can also reduce the benefit amount of the person they're caring for. Without the poorly financed/ unpaid labour of the carers many disabled people would not manage and the social services would not be able