TP and AR have asked the DWP how the £120 figure was reached and argue that the full £180 per month shortfall should be given, otherwise the regulations will still be unlawful discrimination.

They also ask why the new regulations provide discretionary hardship payments for individuals who are subject to “managed migration” onto UC but not for those who have already had to move onto the benefit because their circumstances changed.

They argue that this is a further difference in treatment between the two groups.

The Government has been given a deadline of August 15, 2019, to reply to the letter, or the men say they will launch further legal proceedings.