Macmillan Cancer Support deals with cases like this every day and says people are waiting way too long for a decision.
Eve Byrne, director of advocacy at Macmillan Cancer Support, said: “It is unacceptable that people are waiting an average of five months to receive their Personal Independence Payment.
“This is adding even more weight to the shoulders of many people with cancer, who are already up against the devastating financial pressures of both a diagnosis and the rising cost of living.
“The continued delays are causing huge anxiety for people living with cancer, with some telling us that they simply ‘can’t afford to live’.”
The Department for Work and Pensions declined to comment when contacted by Express.co.uk.