Freelander 2 oil leak

Hi,
Hoping someone could help with an issue I have?
I have a 2009 freelander 2 2.2 diesel, I have an oil leak issue and I've had many parts done but it still remains!

It seems to be dripping off the bottom wher the gearbox meets the transfer box?

I believe its gearbox oil but I'm not sure and only gets worse after it's been drove,

Now I've had many parts changed,
Rear main seal,
Drive shaft seals
Inner gearbox seal
Transfer box seals

But the oil leak still remains,
Hoping someone has had this issue as I'm really struggling to sort it,

Any help would be greatly appreciated,

Sorry also I have had a new slave cylinder when had the rear main changed,

Thanks in advance