If you go to the calculator, they have taxed yours as a 'Panel van' too, but as a 0-1900 engine size. As a 'Kamyonet' with an engine of 1300 ours should only be 259TL not 384TL. Yours should be 521.50. The link is;
{A Link to an old CBF topic was here - no longer available}45092&SearchTerms=car,tax
I would keep quiet on yours if you know what I mean wink wink.