reg 8 Refunds
(1) The Office of Rail Regulation may refund any payment, or part of a payment, made to it in accordance with regulation 7 where paragraph (2) or (3) applies. (2) This paragraph applies where the Office of Rail Regulation accepts that, due to an error in its calculation or change in circumstances, a railway service provider has paid a greater amount of railway safety levy than the amount due by way of a correct calculation made under regulation 3(3). (3) This paragraph applies where— (a) a determination (in this paragraph called the “original determination”) is revised in accordance with regulation 3(2); (b) the railway service provider has paid the railway safety levy in accordance with regulation 7; and (c) the amount of railway safety levy that railway service provider is liable to pay under the revised determination is less than the amount that the railway service provider paid in accordance with the original determination.