£0 remaining for a mobile phone repair

This single mum of a two year old son lost her partner in a tragic motor cycle accident when she was five months pregnant. She rents privately in a rural location and is currently claiming benefits, although she is trying to return to her career as a freelance copywriter. Mum's phone is vital as it is her means of managing her benefits, undertaking financial transactions, day to day planning and communicating with distant friends. The phone now needs repairing and the estimated cost is about £80. Please can you help?