Forgot to update this thread!
The supplier gave me £15 back. I suggested the amount as it wasn't too greedy and yet gives me enough for a mod. Direnza don't 'make' them I feel as they said they didn't have any mount pegs to send me.
So what I am gonna do is use my mini cutter to cut an old slam panel so I can move the mount 2cm inwards (and fit the cut out piece in to where is was moved from). I am going to move an entire piece with the mount hole AND the edge of the raised part that kind of 'bends', so when it's welded up - I have loads of welding wire - and sprayed it should look OEM as you probably can't notice it being 2cm inwards on one side.
Chuffed with my refund I plumped for a set of these for £60 delivered:
So that's a new alloy rad and underfloor pipes for £87 all in!