I just spoke with a customer service representative from Celebrity that was nothing but gracious over the phone. I had barely started talking and she stated she was very well aware of the numerous and horrible experiences on the Infinity ship in addition to the mechanical difficulties. She apologized profusely. She stated they have gotten an unprecedented number of complaints for that sailing and are going to research the situation and try to rectify it.
I would recommend you call customer service if you have issues:
1 800 256-6649