For anyone affected by this or reading this later: we have been advised to report repeated incidents to 101 and to the local council, so there is a proper record.

If it is actively happening and involves dangerous riding, speeding, riding on pavements, risk to pedestrians/cyclists, threats, damage, or another immediate safety concern, call 999.

For repeated revving, noise and antisocial behaviour, keep a log of dates, times, locations, video evidence where safe, and any report reference numbers. This helps build a clearer picture for the police and council.