My meter was read on the 8 December 2022 (376) (Statement Date 2023/01/28) and the next reading was 9 March 2023 (441) (Statement Date 2023/04/22). i was charged an interum amount of 15kl in my February (Statement Date 2023/02/24) and nil in March (Statement Date 2023/03/25) accounts. Then charged 65kl in April account (Statement Date 2023/04/22). Please divide the 65kl over the 3 months and subtract the interum 15kl from this amount.