A firm must ensure that the distance marketing information, the commercial
purpose of which must be made clear, is provided in a clear and
comprehensible manner in any way appropriate to the means of distance
communication used, with due regard, in particular, to the principles of good
faith in commercial transactions, and the legal principles governing the
protection of those who are unable to give their consent, such as minors.
[Note: article 3(2) of the Distance Marketing Directive]