Hello you, unfortunately I received today a tax notice from the tax office, which informs me that because of the missing Russian particulate filter of my C4 I should pay now 1,20 EUR per 100 ccm more car tax. But only I have an HDI 110 FAP, which is equipped with it as standard. Who has now been sleeping there? Did Citroen not report there in time to the KBA? The communication speaks of a change of office. Now I have the work here. What is the best procedure? I’m really upset… what do you think?