According to China's Consumer Protection Law, the goods or services purchased by consumers have a certain validity period, but the early education classes are service goods, and their validity period can be determined by both parties through consultation. If the two parties clearly agreed on the validity period when purchasing the early education class, it is legal to use it within the validity period. Generally speaking, in the absence of a clear agreement on the effective period, early education institutions should provide a reasonable service period to protect the rights and interests of consumers. If the early education class expires, consumers can ask the early education institution for a refund or an extension of service.