Dear Sir,
It has come to our attention.
Our records clearly show. There can be no doubt.
I cannot emphasize too strongly that these activities
are completely unacceptable to us.

We would of course prefer to settle this matter amicably.
However, I must inform you that, should you continue to,
we cannot rule out the imposition of severe.

I therefore enclose for your consideration.
You should carefully note the wording of paragraph, sub-section.
Previously, some people in your position have assumed that this simply meant.
They were unpleasantly surprised when they realized too late that it does not.

I politely suggest that, at your earliest convenience, you should.
The options open to you at this point are limited, and will all be unwelcome.
Nevertheless, you would be ill-advised to consider non-compliance.
Our Enforcement department is large and enthusiastic.
They would relish the opportunity to.