private void checkQueryString()
        {
            String token_id = Request.QueryString["token"];

            if (token_id != null)
            {
                SignUpModel  signUpModel  = new SignUpModel();
                TokenService tokenService = new TokenService();
                Token        token        = tokenService.getByID(token_id); //Throws NoRecordException

                if (signUpModel.completeSignUpProcess(token))
                {
                    //user verification succesful, log in the user and redirect
                    Customer user = token.customer;
                    Session["user"] = user;
                    Response.Redirect("Index.aspx");
                }
            }
        }