"Patient's belongings were lost"

My son who is paralysed from the neck down was admitted to the queen's hospital (bluebell ward b) with a breathing problem his belonging's were put in a ruck sack by his carers at his home and sent to the hospital with him. in the ruck sack were his key's to his flat and a special lifting sling. (The sling is designed to stop pressure sores) they have all been lost or stolen. Since he has been in the hospital he has now developed a pressure sore on his foot