Scary Phone Calls.

So today I phoned up Banham Zoo and asked for their permission to film within their zoo. The assistant on the line asked me what I would be filming, and for what reason and then directed me to another phone number which I needed to call in order to obtain their permission. At this moment I'm unsure whether they will allow me to film or not as this number went straight to an answering machine so I will try again later today, or tomorrow.