The store name infringement depends on the full name of the first store: Jiamei XX Company in XX City, Jiamei XX (Plaza) Store in XX District, and whether it has a registered trademark. If it is Jiamei XX Company in XX City, you cannot use it if you are in the same city; if it is Jiamei XX (Plaza) store in XX District, you can use it if you are in the same city but in a different district. If the other party registers a trademark, you cannot use it nationwide. Whether online or on land. But if you register your trademark before he registers it, you can use it anywhere.