Consume webservice request construct help VB.NET VB WDSL

Hi,  I'm struggeling with a webservice request and could use some help. I was sent a WSDL 

<a href="https://www.estes-express.com/tools/rating/ratequote/v4.0/services/RateQuoteService?wsdl">WSDL link</a>

I can't figure out how to construct the actual response request to gain a response from  the server. 

I have all the freight load requirements loaded up correctly in my estesRateRequest object (code below)

My issue is I have no idea how to construct and fire off the request to gain a response from the server. I don't know where to look in the WSDL and am trying to learn Any help will be gladly appreciated :) Thanks

<pre lang="vb">   Protected Sub GetEstesRate()

    Dim estesAuth As New wsdl_estes.AuthenticationType
    estesAuth.user = ("xxxzz")
    estesAuth.password = ("zzzz")

    Dim estesRateRequest As New rateRequest With {
        .requestID = ("xxxxxxx"),
        .account = ("12345"),
        .terms = ("P")
        }

    Dim eOrigin As New PointType With {
        .city = ("Atlanta"),
        .stateProvince = ("GA"),
        .postalCode = ("30369"),
        .countryCode = ("US")
        }
    estesRateRequest.originPoint = eOrigin

    Dim eDestination As New PointType With {
        .city = ("Knoxville"),
        .stateProvince = ("TN"),
        .postalCode = ("37918"),
        .countryCode = ("US")
        }
    estesRateRequest.destinationPoint = eDestination

    Dim eDims As New DimensionsType With {
        .length = ("48"),
        .width = ("42"),
        .height = ("45")
        }

    Dim Commodity As New FullCommodityType With {
        .class = 60,
        .description = ("Books"),
        .weight = ("7000"),
        .pieces = ("6"),
        .pieceType = PackagingType.SK,
        .dimensions = eDims
        }

    estesRateRequest.Item = (Commodity)

    estesRateRequest.linearFeet = ("12")

    Dim accscode() As String = {"APT"}

    estesRateRequest.accessorials = accscode

End Sub