Subject: Changes to our prices from New price from
Dear Client's name,
Thank you for working with Your business. I am writing to let you know about a change to our prices.
From New price from, the price of What the price is for will go up How much it goes up.
Why, in one honest sentence
Nothing else changes: What stays the same.
If you have any questions, or would like to talk it through, please reply to this email. We value your business and will keep working hard to earn it.
Kind regards,
Your name
Your business