If you purchased participating insurance through online channels, you can cancel the policy online through the insurance company's official website or the insurance company's official public account, and submit the corresponding claim information.
But if you purchase participating insurance through offline channels, you can choose to mail the corresponding claim information to the insurance company’s offline business outlets, or go to the business hall yourself.
In fact, there are many details that we need to pay attention to when surrendering an insurance policy. The senior sister has compiled them in this article for everyone: What details should we pay attention to when surrendering an insurance policy?