Middle class students with “ sharp-elbowed ” parents will have the upper hand when it comes to appealing against their exam results, ministers have been warned. The Government should admit that this year’s exam system has not been fair to the “ have nots ”, according to Robert Halfon, the Tory chairman of the education select committee. Thousands of teenagers will receive their A-level results on Tuesday and GCSE results on Thursday.... Their request for a review will go to their school in the