Consume webservice with dot net application

Question

I want to consume webservice which take class as input parameter . I am unable to do so .
want to call computepremium method

 [DesignerCategory("code")]

    [WebServiceBinding(Name = "BasicHttpBinding_IPremimumCalculatorService", Namespace = "http://tempuri.org/")]

    [GeneratedCode("System.Web.Services", "4.0.30319.17929")]

    [DebuggerStepThrough]

    public class PremiumCalculatorService : SoapHttpClientProtocol

    {

        

    

        [SoapDocumentMethod("http://www.apollomunichinsurance.com/B2BService/IPremimumCalculatorService/ComputePremium", RequestNamespace = "http://www.apollomunichinsurance.com/B2BService", ResponseNamespace = "http://www.apollomunichinsurance.com/B2BService", Use = SoapBindingUse.Literal, ParameterStyle = SoapParameterStyle.Wrapped)]

        public Client[] ComputePremium(PremiumCalculatorRequest premiumCalculatorRequest);

         

    }