Excuse me, do you want to ask, "What should I do if Vipshop's underwear is broken after wearing it for a few days?" You can take the following steps to solve the problem:

1. Check the return policy of Vipshop: Check the return policy at Vipshop official website or APP to understand the rules and procedures of return.

2. Contact the customer service of Vipshop: communicate your question with the customer service staff of Vipshop through online customer service, customer service hotline and other customer service channels, explaining that the underwear you bought is pilling and damaged.

3. Provide evidence: If possible, take photos or videos to prove the pilling and damage of underwear. This will help you to provide evidence to Vipshop so as to solve the problem better.

4. Submit a return application: According to the return policy of Vipshop, submit a return application as required. Fill in the necessary forms or provide relevant information, and return the damaged underwear to Vipshop.