Song is not asking for his money back. Why? Because cable companies (and others) normally insert an aribitration clause into their agreements to cover such situations, which would require Song to submit his dispute to arbitration (which would cost much more than the amount that could be recovered). Instead, Song is asking for injunctive relief - basically asking that Charter not charge him in the future. Why would he do so? Let's read a bit more of the agreement:
"Only claims for money damages may be submitted to arbitration; claims for INJUNCTIVE ORDERS or similar relief MUST be brought in a COURT
Charter basically demands that Song hale it into court. Nice job, Charter lawyers.