Send Telegram message to 15,000 User Id's

I am looking for someone to send a Telegram message to 15,000 user ID's for an announcement. I have a prepared message that needs to be sent within 24 hours. I'm looking for someone with experience sending bulk messages on Telegram and the ability to complete the task on a short timeline. If you think this is something you can help me with, please do not hesitate to reach out. Thanks!