The requested authorities shall not be obliged to execute a request for recovery or notification if the request does not contain the information referred to in Article 16(1) and (2), is incomplete or manifestly does not correspond to the underlying decision.

In addition, the requested authorities may refuse to execute a request for recovery in the following circumstances:

(a) following inquiries by the requested authority it is obvious that the envisaged costs or resources required to recover the administrative penalty and/or fine are disproportionate in relation to the amount to be recovered or would give rise to significant difficulties;

(b) the overall financial penalty and/or fine is below EUR 350 or the equivalent to that amount;

(c) fundamental rights and freedoms of defendants and legal principles that apply to them as laid down in the Constitution of the requested Member State are not respected.