Merchants unilaterally cancel orders and secretly raise prices after purchase confirmation

Chinese consumers face a critical trust and contract enforcement problem where merchants accept orders for high-demand electronics (like RTX 5080 GPUs) then secretly cancel them or claim items are out of stock, while actually repricing inventory higher. Buyers lose time, opportunity cost, and face price gouging with no recourse, as current e-commerce platforms lack real-time inventory verification and binding price-lock mechanisms after order confirmation.