1. Negotiation with the developer: First, try to communicate with the developer and ask him to deliver the house that meets the specifications according to the contract, and provide corresponding certificates and adjustment plans.
2. Apply for rights protection through legal channels: If the actual height of the store is seriously inconsistent with the promised height, you can consider applying for rights protection from relevant departments through legal channels to safeguard your own rights and interests.
3. Self-decoration and adjustment: If the actual height of the store is not much different from the promised height, you can also choose to self-decorate and adjust, such as lowering the ceiling or raising the ground, in order to achieve the desired effect.