You can return it, but there will be no full refund. You will be charged a part of the fee. Open Suntech app, click on mine, which contains my order, and click on Refund.

Legal basis:

Law of People's Republic of China (PRC) on the Protection of Consumer Rights and Interests Article 39 Disputes over consumer rights and interests between consumers and business operators can be resolved through the following channels:

(a) negotiated settlement with the operator;

(2) Requesting consumers' associations or other mediation organizations established according to law to mediate;

(three) to complain to the relevant administrative departments;

(four) according to the arbitration agreement reached with the operator, submit it to an arbitration institution for arbitration;

(5) bring a lawsuit to the people's court.