> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://knowledgebase.xtenav.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Who should users contact if self-service subscription upgrades fail?

**Overview**

If users are unable to complete a subscription upgrade through the self-service option in XTEN-AV, they can reach out to the appropriate team for assistance. The XTEN-AV team helps resolve issues related to billing, technical errors, or upgrade restrictions and ensures the subscription is updated smoothly.

**Contact Sales Team**

Users can contact the XTEN-AV sales team for assistance with billing-related queries that require account-level support or custom guidance.

**Contact Support**

Users can also reach the XTEN-AV support team via **chat support** or email at [**support@xtenav.com**]. The support team assists with technical issues, upgrade failures, and helps users complete the subscription upgrade process successfully.