I ran into this issue yesterday and pretty much every solution I found was based on you being able to run two cmdlets, which I am not permitted to even see that the cmdlets exist (they do). My role is a lower level global admin in a forest.

Can't say how glad I am that you took the time to comment on your own thread. I found what I needed and late (very late) that night, the items started to disappear from Purges.

<3