CardNumber always blank in SIMResponse

[MartinCA1980]

I'm trying to integrate DPM into my solution... i get an authorized transaction but i'm trying to parse out the CardNumber from Authorizenet.SimResponse class and it's always blank while all the other properties work fine. I take the CardNumber property is to return last few digits of the whole CC number... is it intentional that it's blank?

i'm using latest binaries in VS 2012

Dim sr = New AuthorizeNet.SIMResponse(Request.Form)           

Dim CCNumber as String

If Not sr.Approved Then

       'do stuff

Else

       CCNumber=sr.CardNumber.Tostring()     

EndIf

sr.cardnumber is always blank

any clues?

[MartinCA1980]

been searching for the answer and only found it after i posted :)

see http://community.developer.authorize.net/t5/Integration-and-Testing/Last-Four-numbers-from-DPM-post/...

wrong field name was used.