Yonghui Supermarket is expensive online and cheap in physical stores. How to defend rights?

Yonghui Supermarket is expensive online and cheap in physical stores. Rights protection methods are as follows:

1, negotiate with Yonghui Supermarket operators to solve the problem that online is more expensive than offline.

2. Ask the consumer association for mediation.

3. Complain to the relevant administrative department.

4. According to the arbitration agreement reached with the operator, apply to the agency for arbitration.

5. Bring a lawsuit to the people's court.