There are costs for repeating modules. You will be charged on a pro rate basis according to the number of credits in the modules you are retaking. It is worked out as: (Number of credits taken/full credit load) x applicable full time fee.
Example: A HEU student is repeating 3 modules of the BA Economics course in Year 3. Each of the modules is 30 credits so the student is taking 90 credits so the fee owed is: 90 (repeating credits) / 120 (full credit load) x £9,250 (full-time fee) = £6,937.5