Question regarding dismantling Givi E-52 topcase black band

I needed to replace a the black band that goes around the case and is held on in the front by the two reflectors. There is no problem removing the reflectors as they are held on by two screws each, and the band that I want to remove is loose on the sides and corner of the case but I am stumped as to how to remove it from the back. E-360 cases have a screw on the inside that hold this band on at the back but the E-52 has no such screws anywhere.

Is there anybody who has removed this band who could give me some advice?

Image file attached indicating the band that I am referring to.