What should I do if I pay more than a few thousand dollars in a physical store? I forget which store I bought it in.

Go to the bank to check the consumption records and lock the merchants.

Keep your own consumption records and ask the merchant for a refund. If the other party constitutes unjust enrichment, you can ask the other party to return it.

The main functions of physical stores are purchasing and consignment. In other words, consumers go to a physical store to consign goods or buy goods, and there will be someone in the physical store to help with the specific operation.