1. Stop selling immediately.
2. Call the intellectual property company to see what the other party wants to do. Anyway, you infringe the other party's trademark right first.
3. The relevant departments may claim compensation from you, depending on your sales volume.
4. There will be some compensation, which will be regarded as a lesson.
5. However, it is best for you to negotiate with the other party to obtain his sales license, so that your compensation may be less.
6. You can try to complain, but you have to think of reasons. However, judging from what you wrote, should it be that you wrote someone else's brand? This kind of appeal that has been judged by Taobao is estimated to be less successful.