Not illegal. Scalping usually refers to buying at a low price and selling at a price much higher than the purchase price through speculative means without official approval, which is referred to as buying low and selling high. It disrupts market order. It is a normal phenomenon under the conditions of China's market economy or commodity economy to sell things purchased on Taobao in one's own store. After all, the prices of the things purchased are transparent and will not affect the market order.

1. Is it illegal to make a price difference without a source of goods?

1. It is not illegal to make a price difference without a source of goods if the source of goods is regular. As long as there are no unfair or unreasonable transaction conditions in the sale of goods, and there is no forced transaction, it is not illegal. Our country's laws clearly stipulate that operators providing goods or services to consumers must perform their obligations in accordance with the provisions of this Law and other relevant laws and regulations. If operators and consumers have an agreement, they shall perform their obligations in accordance with the agreement, but the agreement between the two parties shall not violate the provisions of laws and regulations. Operators who provide goods or services to consumers must abide by social ethics, operate with integrity, and protect the legitimate rights and interests of consumers.

2. Legal basis: Article 225 of the "Criminal Law of the People's Republic of China"

The crime of illegal business violates national regulations and involves one of the following illegal business behaviors , who disrupts market order, and the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also or solely be fined not less than one time but not more than five times the illegal income; if the circumstances are particularly serious, shall be sentenced to fixed-term imprisonment of not less than five years and not more than five times the illegal income. A fine of not less than three times but not more than five times or confiscation of property:

(1) Unauthorized operation of special items, monopoly items or other items restricted from sale and purchase stipulated in laws and administrative regulations;

( 2) Buying and selling import and export licenses, import and export certificates of origin, and other business licenses or approval documents stipulated in laws and administrative regulations;

(3) Illegal operations of securities, Futures and insurance business, or illegally engaging in fund payment and settlement business;

(4) Other illegal business activities that seriously disrupt market order.

2. Is it illegal to refuse to accept cash?

It is illegal to refuse to accept cash. According to legal provisions, my country's legal currency is RMB, including banknotes and coins, and no unit or individual may refuse to accept cash. When accepting cash payments, collection units must provide convenient conditions for consumers and must not refuse to accept cash due to reasons such as inconvenience in making change, fear of receiving counterfeit currency, lack of manpower, internal control risks, etc. Avoid situations where cash payment has more complicated procedures, more links, and longer time than non-cash payment. In order to protect consumers' right to make independent payments and ensure the normal life and consumption needs of residents, especially the elderly and other people who prefer to use cash, the People's Bank of China has established a long-term mechanism to rectify the refusal of cash, refined measures, and integrated them into daily work. , establish harmonious RMB circulation.

I hope the above content will be helpful to you. If you have any other questions, please consult a professional lawyer.

Legal basis: Article 16 of the "Consumer Rights and Interests Protection Law"; Operators who provide goods or services to consumers shall perform their obligations in accordance with the provisions of this Law and other relevant laws and regulations. If operators and consumers have an agreement, they shall perform their obligations in accordance with the agreement, but the agreement between the two parties shall not violate the provisions of laws and regulations. Operators who provide goods or services to consumers must abide by social ethics, operate with integrity, and protect the legitimate rights and interests of consumers; they must not set unfair or unreasonable transaction conditions or force transactions.