I believe that the cube-form that was described might be valid in the Eastern Rite Churches. It was pointed out in another thread.
However, regarding liturgical abuse-reporting, the chain of command is as follows:
You take the matter up with the priest first, in a charitable manner, citing the appropriate Church documentation when pointing out the abuse. If the priest persist in practicing this abuse, then, you write a letter to the bishop, certified, return receipt requested. The bishop should reply (and you should get the little green certified card back as an acknowledgment that your letter was received). If nothing happens, then, you write to the Congregation for Divine Worship and the Discipline of the Sacraments. This is the Curial Office of the Holy See that is authorized to handle such matters. Send the letter certified, return receipt requested, express delivery. Within about three weeks, you should receive the orange acknowledgement card verifying that your letter was received. Five days later, you will get a formal letter from the Congregation informing you that they are looking into the matter.