1. Contact customer service: First of all, you can get in touch with customer service personnel through customer service channels in Suning.cn, such as customer service telephone, online customer service or customer service message board in official website. Explain your situation to them in detail and ask about the specific process and requirements for refunding the deposit.
2. Consult relevant terms and conditions: Please read the user agreement of Suning.cn or the terms and policies related to the deposit carefully. Make sure that you have a clear understanding of the use, refund and return of the deposit, so as to know your rights and interests and appeal channels.
3. Provide evidence: If you think that the deposit should be returned to you, but you refuse or delay the return, you can prepare relevant evidence to support your claim. Such as payment vouchers, order information, return/refund application records, etc. Provide these evidences to customer service personnel or relevant departments in Suning.cn to strengthen your complaint.
4. Complaint/complaint channel: If you can't solve the problem by contacting customer service for many times, you can consider complaining to the complaint channel in Suning.cn or the relevant regulatory authorities. You can search for complaint channels in official website, Suning.cn, or contact consumer protection organizations to find out the specific process of complaints and appeals.