Is not be able to read right code

Even in they web site say that is able to read Diesel Particulate Filter parameter ($017A $017B $017C) , and then you buy it, this app is not be able. So that, after buy, cant you get back your money ? No.
so DO NOT BUY IT. (14€ I prefer give to poor people)

Brugoladigitale about OBD Auto Doctor, v2.1.0