Volkskrant reported last week that we have 12,1 million mobile phone users in the Netherlands. Two thirds have a pre-paid phone, as this allows them to control cost. Consequently there is not a lot of turnover and some mobile operators oblige users to top up at least 20 euro per half year and to use the phone. Others allow top ups for lower amounts (10 euro) and do not invalidate the pre-paid money after a specific period of non-use.
