A simple clear process for non-electricians would greatly improve the service. Sent multiple photos of fuse boxes, earth wires, electricity meter etc. Who knows what an MPAN number is? Being told it is on your electricity bill is not helpful - who gets bills these days (you can get number from UK Power networks if needed, as I found after half an hour online). Kept being asked for duplicate photos, additional info but nobody actually specified detail of what was needed or why. Subcontractor who fitted charger was great. Suggest survey of premises is included as part of process, then BP knows everything ok and customer does not spend hours trying to sort out. Helpline (phone and email) are not very responsive. I expected better from BP.