if you don't need to collect commemorative coins, you can directly refuse. if you agree, you can choose to communicate with postal customer service and return them. commemorative coins are freely purchased and cannot be forced.

China Postal Savings Bank customer service and complaint hotline: 9558, and credit card (debit card) customer service and complaint hotline: 488-9558. China Postal Savings Bank was formally established in March 27 on the basis of reforming the original postal savings management system.