How in the hell do you undo this tap fixing?

[WaterTight]

I've removed one or two before and all I did was attack them with increasing frustration until they sort of started to come off. I presume there actually is a way to painlessly remove them? Or are they badly designed enough that they just get stuck solid once fixed in place?

Thanks

 

[Burger]

Not the best photo, able to take another with flash maybe? Looks like a mono mixer with a basin fixing bracket?

 

[ShaunCorbs]

There’s a hole in the top of the tap put an Allen key down there and undo

 

[WaterTight]

There’s a hole in the top of the tap put an Allen key down there and undo

Seriously? Amazing. Would have never figured that out. Cheers!

 

[Chalked]

Remove the pop up waste bar from the tap and looking from underneath, the threaded rod has an Allen key hole in the centre. Undo the rod anti clockwise.

 

[JCplumb]

That's a B and Q special, hated them until I figured out the trick. Still not keen

 

[WaterTight]

I wish I'd asked this before, jeez, was a lot easier now I know!