Fix Facebook Page "Send Message" Button Missing / Not Showing Issue via AnyDesk

!!!!!!!!! Don`t sent outo or ai msg pls
I need an experienced Meta / Facebook Page Specialist to fix an issue on my business page: SM LINEN (https://www.facebook.com/smlinenth).
Currently, visitors cannot see the "Send Message" (Messenger) button on my page header. Instead, options like "Call" or "WhatsApp" appear. I need the standard "Send Message" button to be visible to all visitors/customers.
What I Have Already Tried (Without Success):
Verified that "Allow people to message my Page" is enabled in Facebook Settings.
Configured Meta Business Suite Inbox Automations (Instant Reply / Auto-reply enabled in Thai).
Tried changing/editing the Action Button via Page settings.
Checked the page from incognito mode and secondary Facebook accounts.
Page status is in good standing (Clothing brand, no policy violations or restrictions).
Requirements & Work Method:
Method: You must connect to my computer via AnyDesk / TeamViewer to diagnose and resolve the issue directly from my browser/account.
Experience: Must have proven experience resolving Meta Business Suite, Page Action Button bugs, or Messenger integration conflicts.
Goal: Ensure the "Send Message" button is properly set as the primary CTA and visible to all external visitors on both mobile and desktop.

Please submit your proposal only if you have fixed this exact issue before and are comfortable working via AnyDesk.
if you expert then this is afew click check and set action and 10$ is enouge . job has to complate in a few hours
happy bids