What happens after I dispute?

Your reviewer decides, and you get a message with the outcome.

Possible outcomes

Approved: the rating is tagged so it can be left out of CSAT reporting. You'll see your reviewer's comment, if they left one.
Denied: the rating stays in reporting. Your reviewer always explains why.
Closed: the customer changed their rating to good, so your dispute closed on its own. Nothing else to do.
Not reviewed in time: your reviewer didn't decide before the ticket locked (or before your team's review time ran out). The rating stays in reporting.