QQ Security Center, when I send text messages, I always remind me that I didn't send them. What should I do? The same is true for changing mobile phones.

Hello, I'm glad to answer your question:

If there is no response after sending, it may be a network delay. I suggest sending it again later, and then try logging in directly. I hope my answer is helpful to you. If you have any questions, please click Ask.

If you are satisfied, you can choose to adopt the answer? thank you