Has anyone been able to disable this automatic reply?
We will get back to you during our working hours — our team is always online during this time.

Hey, ​@Aishat and ​@Michelesg 

After the message, there is another message that says something like “Powered by Manychat”?
→ If so, go to your setting → select the channel where this is happening → check if the default reply has something.
→ If not, this was sent from another tool. Check the Meta business suite (https://business.facebook.com/latest/inbox/all) → Inbox → Automations → Check if there is any automation set (probably the “Away message”)

Let me know if this helps