Repeat no-show — final-notice message (warm but firm)

A client has now no-showed multiple times. I want to keep them as a client if they want to be kept, but I need to switch them to a prepayment / deposit-required model going forward. Help me draft the message.

Client first name: {{first_name}}
Service they normally book: {{service}}
Number of no-shows so far: {{count}}
Last no-show date + service: {{last_noshow}}
Existing missed-fee policy: {{existing_policy}}
The new arrangement I'm proposing: {{new_arrangement}} (e.g. '50% prepay required to lock the slot', 'future bookings deposit-only')
Am I open to keeping them as a client if they accept? {{open_to_continue}}

Write a 100–140 word email (or long-form SMS).
- Open: warm but factual. Name the pattern (X missed appointments) without lecturing.
- One sentence on why this affects me / the business / other clients.
- The new arrangement, plainly. NOT punishment-framing — boundary-framing.
- Close: "If that doesn't suit, no hard feelings — let me know and I'll release your slot for someone on the waitlist."
- Sign-off as {{my_name}} from {{business_name}}.

AU English. Friendly, professional, no shame.