Today, I was admiring my Philips 36W SOX-E bulb and I dropped it, thankfully on to carpet, but still, the lower mica disk holding the arc tube in place cracked and is bent in multiple different directions. Anything I can do? I'm pretty frustrated about this because I just got it.

I doubt there is anything you can do to fix this, but as long as things aren't shorted out inside it should still work fine. Maybe slightly reduced performance from reduced heat reflection but nothing major I would assume.

Dont disturb it to prevent bending the wires forward and back by moving of the arctube, and to prevent the arctube from coming out of the disk on the other side (that holds the pip of the tube)

Use it in a position in which it does not touch the inside wall of the outer envelope, so i won't make contact with the ITO coating

Otherwise i dont think there will be a difference in how it works

In short, maybe install it somewhere to work like in your garden, and get a 2nd one for handling and testing