Seven-year-old William is fighting cancer for the second time.

The family from Canberra is staying in Sydney so the boy can receive treatment at Westmead Children’s Hospital.

On Tuesday, while driving to surgery with William, their car was written off.

A GoFundMe has been set up to help the family.

Ben Fordham has surprised mum Alisha on-air with $1000, thanks to Aramex.

Press PLAY below to hear the moment