Joint claim for Income-Based Jobseekers Allowance?
If the claim was a joint claim for Income-Based Jobseekers Allowance, then the younger member may be able to take responsibility for both members of the couple and continue on the IB-JSA, and as long as they did this before the award of IB-JSA was terminated, the working age Housing Benefit could also continue in payment.
See para 2, DMG Memo 7/19.