Helloqatar's being unfair to Dilshad's perfectly reasonable question. Her circumstances are unusual and QP are not renowned for clear advice and consistent treatment, so seeking advice from other foreigners who might have witnessed comparable situations is a sensible thing to do. If we could easily get reliable information from official sources, there wouldn't be much point to this web site! Plus, we all know there are times when it's best not to ask officially, for fear that authority will then have to administer a rule that they'd otherwise be happy to ignore.
Having said that, if you don't get a knowledgable answer soon, it probably is worth formally enquiring as the potential hassles are considerable. Quite apart from the effect on allowances, there's the question of whether he'd be allowed to take employment anyway.