When encountering a hegemonic clause, you can first negotiate with the other party to resolve it. If the negotiation fails, you can collect evidence and file a lawsuit in the people's court.
[Legal Basis]
Article 3 of the Contract Law states that the parties to a contract have equal legal status, and one party may not impose its will on the other party. (The Contract Law will expire on December 31, 2020)
Article 4 of the Civil Code states that all civil subjects have equal legal status in civil activities. (The effective date of the Civil Code is January 1, 2021)