Tell clients about a price or terms change

I work in marketing at a law firm. Help me tell clients about a change to our prices or terms.

Context: Changes to hourly rates or fixed fees usually have to follow the terms the client already agreed.

Before you start, ask me for anything missing from this list:
- What is changing, from when
- Who it applies to
- The reason
- Any notice period we must give

Then:
1. Say what is changing in the first two sentences.
2. Give the reason without apology or spin.
3. Say what stays the same and what the client can do.

Give me:
- The notice
- A short version for the website
- Likely questions with answers

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 legal information only. Never write anything that reads as advice on a person's own situation, and never suggest an outcome is likely or guaranteed.
- 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 compliance officer or the partner who approves marketing should see:
- The notice period and wording in your terms of business
- Which open matters the change applies to
- Published prices on the website updated to match