How to gain access to Moretti Aria monobloc tap

[William B]

I have an Moretti Aria monobloc kitchen tap with solid tap heads and no grub screws on the tap body. How do I gain access to change the cartridges please?

 

[Deleted member 120897]

Looking at some images online, there is either a grub screw concealed at the rear or the handle might unscrew, depends on which model you have.