Somewhere there is a fuel cut-off switch. It is supposed to trigger in a collision, to stop the pump and prevent fuel being ejected causing a fire. Sometimes these pop over severe bumps or potholes. These are usually in the cabin, behind the centre console in the footwell, or under a seat. Consult the handbook for "Fire protection". It will have a button on top to press and reset.
Failing that, likely to be the fuel pump relay. In the main fusebox under the bonnet. Again, handbook or diagram in fusebox cover will locate. To test, by-pass it and see if pump runs.
To test pump, run a wire direct from battery to pump. Check all earth connections.
