1. If the education and training institution refuses to refund the training course fees without justifiable reasons, the service purchaser may choose to complain to the Consumer Rights Protection Association or file a civil lawsuit to ask the training institution to refund the fees. However, if the training institution has provided course training to consumers legally and contractually, consumers cannot claim a refund at will.

2. Legal basis: People's Republic of China (PRC) Consumer Protection Law.

Article 39 Disputes between consumers and business operators over consumers' rights and interests 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.