For me it depends on the circumstances and many other factors. I think there can be different reasons for that kind of manipulation... one person might do something like that because they don't know how to ask for help. Another might do it because they feel ambivalent about *deserving* help - they might want to ask, so do so in an apparently manipulative manner, but then 'shut down' and so deny all feelings about it. Yet another might do it for pure self gain... to cast himself in the role of victim instead of the aggressor.
So there are some times when I am more compassionate towards this kind of behavior and other times when I am not, depending on the wider context.