Did the liability at the new place commence on 18/03/22 and if not when did it commence?
If they moved in after the liability commenced, as it appears your post is saying, then I don’t think they can be awarded HB on 2 homes unless they satisfy the rest of the reg 7 conditions (HB prior to moving in, as well as HB on 2 homes). There isn’t really such a thing as an application for an overlapping period, so the request for a particular period is mostly moot, it is the conditions of entitlement that will determine the period.
