Single Mum with one year old in a Universal Credit pickle

Our person in need of help is a young single mum, with a one year old son.  She has recently been moved out of emergency accommodation and into a temporary home.  She has been dealing with the benefits system, claiming Universal Credit.  There have been repeated problems with her claim, when some of the money has been missing, or her payments stopped due to a misunderstanding over her rent.  She has had to resubmit her claim and will yet again have to wait to be paid, having to wait another 4-5 weeks.  Being in temporary accommodation she is under enormous pressure to make sure that her bills are met, in order for her to move successfully on in the future.  We agreed to send over £150 to keep her going over the next few weeks until her payments restart.  In the meantime, our agents that are helping her, and who approached us, are helping her with a nil income form for her rent and council tax.