Move somewhere safe
If the vehicle is beside live traffic, prioritise your own safety. Stand behind a barrier or move to a well-lit public place while you arrange help.
Check every access point once
Confirm every door and the boot, then stop. Repeatedly pulling handles or experimenting with improvised tools can damage seals and lock components.
Gather the useful details
Have the registration, make, model, year, exact location and your description of where the key is. A locksmith can prepare more accurately with this information.
Confirm identity and costs
Expect to show ID and proof you are authorised to use the vehicle. Ask for the likely method and a quote before anyone is dispatched.