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Three times a week Ben Baddeley, who has cerebral palsy, has life-changing physiotherapy to help him to walk unaided.

His dream is to play football in the park this summer but the cost of his £450 a week treatment is being paid for by his family, and their money is running out.

Taking matters into his own hands, 11-year-old Ben wrote to the prime minister and to his surprise he heard back.

Ben and his mum Amy told us what they made of David Cameron's response.