When a flight is redirected due to bad weather, there should be communication between the airline and car park personnel. Two planes were diverted to Birmingham and passengers were arriving via coach to collect their cars at 2am. There was nobody in the designated office to help anyone, there was a wait of around 45 minutes for someone to turn up to help. Unacceptable, as an older woman who could have been on her own, their was a high risk factor, something that should be addressed. Extremely poor customer service. Will think twice about using the service again.