We run a service for processing web hooks for various other services like Slack and Telegram. We have rate limits in place to ensure that no one user can take up too many resources and affect services.

The problem is we are getting a ton of requests from Telegram server IP address blocks to our servers for services which don't exist anymore. It mostly looks innocuous like forgotten test services or development services constantly echoing hello.

Normally we would simply add the offending IP address to be blocked on the system level. In this case however; if we start adding Telegram server IP addresses all Telegram services will go down for all our users.

Has anyone else dealt with this issue? Is there a good way to contact Telegram for sort of thing? We don't really understand why their Bots API is sending us so many requests.