Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
What is the nature of the illness?
Are they considering divorce proceedings?
How much is the debt and what was it used for?
Sorry - how old is the child?
Has your son now set up his own account?
Realistically at this point there is nothing that can be done about the debt.
As and when there is a clear decision on a divorce then the financial issues will have to be considered and this will include how the debt will be dealt with - and what has happened to his compensation.
Until then if his ex will not co-operate then there is no action that can be taken
I am sorry not to give better news - please ask if you need further details