Fiesta Red Edition Aerial Mount

[Geoman]

I wonder if anyone can help with this.

I need a replacement aerial mount for a 2014 Fiesta Red Edition.

I've been given a part number by Ford of 21626536 and a price of over £70!

I've search for that part number on the usual sites but found nothing. The fit does seem quite specific so I don't think a generic mount will do.

Anyone have any ideas or experience?

Thanks
G