The reason for the prompt "real-name account already exists" during the real-name authentication process of Tencent e-Signature may be that the current ID information has already been used for real-name authentication in the system. This could be because you previously registered an account and completed real-name authentication, or someone else may have used your ID information for authentication.
To deal with this situation, you can try the following steps:
If you need cloud services to support your business operations during this process, Tencent Cloud provides a variety of reliable cloud services. For example, you can use Tencent Cloud's Cloud Virtual Machine (CVM) to deploy your application systems, or use Tencent Cloud's Object Storage (COS) to store and manage data. These services can provide you with high-performance, stable, and secure cloud computing capabilities.