Single bubble chat can't send a number, but how to solve it?

Numbers that can't be sent by one-bubble chat are invisible because they have been blacklisted by the platform. If you use the social software "Singles Bubble", you can't send messages to some numbers, probably because these numbers have been blacklisted by the platform. If you can't see the specific reasons for these numbers, you can try to contact the customer service team of the platform, ask them this question, and provide relevant information, such as hacked numbers, specific chat records and so on. The customer service staff will help you solve and deal with this problem.