We need more details, you can't post a topic in general, and require users to message you on Telegram.

• What is the nature of the service or services that the user can verify the identity of.
  
• the prices.
• Payment method.
• Is it possible to rent the number or reuse the number?
  
• Will the number be used by another party in the future?
• Why don't you website that automated order processing?
  
• Privacy policy.

Add the answer to these questions, it helps the user before he makes the request.