with implementation, and a high-level review. In March 2016, a third judicial case ordered the DWP to release the documents. The government's argument against releasing the documents was the possibility of a chilling effect for the DWP and other government departments. IT problems Universal Credit has been dogged by IT problems. A DWP whistleblower told Channel 4's Dispatches in 2014 that the computer system was "completely unworkable", "badly designed" and "out of date". A 2015 survey of Universal Credit staff found that 90% considered the IT system inadequate. Telephone problems Claimants on low income were forced to pay for long telephone calls. Citizens Advice in England carried out a survey in summer 2017 which found an average waiting time of 39 minutes with claimants often needing to make repeated calls. Nearly a third of respondents said they made over 10 calls. The government was urged to make telephone calls over Universal Credit free for claimants which was done in 2019. ID requirements In December 2018, Liverpool Walton MP Dan Carden wrote to Secretary of State for Work and Pensions, Amber Rudd, to raise concerns after a number of people claiming Universal Credit were told to apply for provisional driving licences as a form of ID, with the costs being taken from their benefits. In response to the letter a DWP spokesperson said that "having ID is not a requirement for those making a Universal Credit claim", though this appeared to contradict the guidance on the government's website. Fraud It was originally hoped that Universal Credit would help to save about £1bn in fraud and error. However, in July 2019 it was revealed that an estimated £20 million of public money had been stolen by fraudsters. Criminals were found to be exploiting a loophole in the online system to fraudulently apply for universal credit and claiming advance loans on behalf of other people who were unaware that they had been signed up for the benefit. One jobcentre reported that £100,000 of fraudulent activity had been recorded each month. It was estimated that 42,000 people may have fallen victim to the scam. Following the revelations, the Work and Pensions minister Justin Tomlinson announced that "where it is clear that they have been a victim of fraud through no fault of their own, no, we would not expect them to pay it back." A spokesperson from the Department for Work and Pensions later