Write a landing page for an ad

I work in marketing at a private health clinic. Help me write the landing page an ad sends people to.

Context: Someone who clicked an ad wants to confirm the clinic treats this, what a consultation costs and includes, and how soon they can be seen.

Before you start, ask me for anything missing from this list:
- The ad
- The offer
- The form or booking step
- Proof we can show

Then:
1. Repeat the ad's promise in the headline.
2. Remove every link that is not the one action.
3. Answer the three doubts that stop people.

Give me:
- Headline
- Page copy under 300 words
- Form fields to keep and to cut

Rules:
- Use only the facts I give you. Where something is missing, write [detail needed]. Never invent a number, a name, a quote or a source.
- Give general health information only. Never write anything that reads as advice on a person's own condition, and never suggest a treatment is certain to work or free of risk.
- Write in plain English, in our voice if I have given you a sample.
- Do not tell me what the rules or regulations say. If something may be restricted, flag it and I will check.

Finish with a list headed "Check before this goes out". Include these, plus anything else our clinical lead or the registered manager who approves marketing should see:
- What the consultation price includes, and what costs extra
- Countdown timers, limited slots and other pressure to book today
- What health details the form asks for, and where they go