I have been declared bankrupt in Jan this year. I have just recieved some backdated housing benefit, can the insolvency people claim this money from me?
I think the short answer to your query is "it depends".
In general terms, anything you "acquire" after you have been made bankrupt, and before your discharge, is classed as after acquired property and can be claimed by your OR.
However, the OR would not usually claim something as after acquired property if he couldn't have claimed it from you if you'd received it before your bankruptcy.
My gut feeling is that he wouldn't claim housing benefit, but it may well depend on your other income and the amount involved