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Other current assets - Summary of Other Current Assets (Details) - GBP (£)
£ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Miscellaneous Current Assets [Abstract]    
Prepayments £ 4,309 £ 3,940
VAT receivable 1,211 676
Total other current assets £ 5,520 £ 4,616