Opt-in” tegenover “opt-out” in art. 6:230j BW.
Van Boom argues that article 6:230j BW does not stand in the way of (1) additional goods or services offered without an additional payment, and (2) an express agreement to goods or services offered with an additional payment, even if the consumer cannot conclude the original contract without expressly accepting the additional goods or services offered at an additional price.