Rachel Goswell, from Exeter, said it was vital she could sign to Jesse, two, who also has a heart defect.

BBC: Jesse with his parents Joe and Rachel

Paul Fearn, 22 from Goswell Road in Clerkenwell, denies being present at a raid on the Apple Store in Covent Garden in October last year.

BBC: North London 'smash and grab gang stole ?1m of goods'

Ms Goswell said that Exeter Deaf Centre offered half-price discounts for courses to parents, but added that they would not have had to pay anything if they had remained living in London.

BBC: Jesse with his parents Joe and Rachel