How much does a cease-and-desist letter for missing GPSR information cost?

There is no fixed figure, but there is a ballpark: the cost of a competition law cease-and-desist letter depends on the value in dispute. For missing mandatory disclosure infringements, the opposing side's legal fees that you must reimburse typically fall in the range of around €1,000 to €2,000 — per infringement cited, not as a flat fee. On top of that comes a penalty-backed cease-and-desist undertaking: if you repeat the breach, contractual penalties become due. What follows the initial letter is often more expensive than the letter itself, if you do not remedy the situation properly. That is precisely why it pays to check in advance.