Take a product with similar price difference and let the seller change the price, and then pay, or you can send it back directly to send the toll; As long as the attitude is well communicated, the problem can be solved. If it is a quality problem, it will negotiate with the seller to exchange the goods. If it is the buyer's own reason, the freight will be borne by the buyer. It's simple. In the reply, you can put the freight in the shoe box and send it with the shoes.

Extended data

The price difference sometimes manifests as a premium, and sometimes it is a premium. Hedging profit is a kind of market trading method that makes use of the price difference between futures contracts to make profits. The key factor of arbitrage is the change of price difference.

The spread will expand and shrink, but when the spread between two futures contracts is abnormal, it provides an arbitrage opportunity for traders. The difference in price is related to profit. The real difficulty for arbitrageurs is how to capture the biggest difference in prices under the same trend.

For cross-month arbitrageurs, when the spread is greater than the holding cost, it is a good trading opportunity; For cross-market arbitrageurs, what affects the spread is the transportation cost and the variety and grade of delivery goods clearly stipulated by each exchange; For cross-commodity arbitrageurs, it is necessary to know the "normal" price difference relationship between two related commodities in order to use higher or lower "normal" price difference to carry out arbitrage transactions.