The last advice that I have seen from the DWP is that any cost that is a consequence of providing support is a support cost and therefore ineligible for HB.
There are a number of reasons why a provider might not get payments from SP, the main reason being that SP have had their budgets limited and have therefore cut back on what they are paying for.
In my view 1 and 3 are GC&S and not eligible and 2 (although certainly arguable) is more probably ineligible than eligible.
Again, current DWP advice is that service charges need to be connected to the provision of adequate accommodation to be eligible. The adequacy of the accommodation is to be judged against the needs of tenants in general not those with a specific need or disability. In other words, if the only reason a service charge is needed is to allow a category of tenants to occupy the accommodation it is probably ineligible.
Sorry this is based on guidance rather than comms decisions, but it is all that I have.
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