Active Directory Search not working

Using VB.NET

Trying to retreive the 'givenname' and 'SN' from Active Directory using the following code:

<snip>
oSearcher.Filter = "(&(objectCategory=user)(objectClass=user)(samaccountname=" & pUsername & "))"

        oSearcher.PropertiesToLoad.AddRange(New String() {"givenName", "SN"}
        Try
            oResults = oSearcher.FindAll

            For Each oResult In oResults
                returnVal = oResult.Properties("givenname").ToString()
            Next

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but 'returnVal' is set to: "System.DirectoryServices.ResultPropertyValueCollection" and not the givenname

The 'DirectoryEntry' for my DC etc. is correct as I'm using the same thing for another query that works just fine and is very similar to this one.

I get no actual error, just not gettng the data I need

What am I missing?