Who has used the short message group sending platform built by China Network, and how about it?

Let's start with the conclusion: black platform. Why? I said that many years ago, because a customer registered an account, today it was found that the account was banned, saying that it was necessary to provide a business license and ICP filing certificate. Ok, I said no, then deal with the rest of the refund. They said they didn't need to provide the above documents before the refund. I want to say that it was unnecessary when I registered before, but now I use this as an excuse to ask for a refund. I can understand that you need a license to use it. What does a refund have to do with this? I thought you obviously didn't want to return it.