The Netherlands: how often have you called a customer service and heard that the cost of the call will be “1 euro plus normal calling tariefs”? How often have you heard it easily phrased?
According to the EUCJ, this has to be twisted (in favour of consumers).
Firstly, the 1 Euro must already include the normal tariff (therefore it may amount to less than 1 euro).
Secondly, such calls directed to 09xx numbers can only be valid to prospective customers.
Those who have already engaged in a contract (i.e. a purchase), must be given a normal telephone number, since a higher fee may discourage them from pursuing their queries.