public async Task<ActionResult> Register(RegisterViewModel model)
        {
            if (ModelState.IsValid)
            {
                var user = new ApplicationUser {
                    UserName = model.UserName,
                    PhoneNumber = model.PhoneNumber,
                    Email = model.Email};
                var result = await UserManager.CreateAsync(user, model.Password);
                if (result.Succeeded)
                {
                    // Call service to register with auction service database
                    var proxy = new AuctionServiceClient("BasicHttpBinding_IAuctionService");
                    proxy.Open();
                    await proxy.AddServiceUserAsync(new Services.Models.User() { UserName = user.UserName, Email = user.Email, PhoneNumber = user.PhoneNumber });
                    proxy.Close();

                    // For more information on how to enable account confirmation and password reset please visit http://go.microsoft.com/fwlink/?LinkID=320771
                    // Send an email with this link
                    string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
                    var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
                    string msg = "Bạn đã đăng ký tài khoản tại SGUStore<br/>Vui lòng hoàn tất việc đăng ký của bạn <a href=\"" + callbackUrl + "\">tại đây</a>";
                    await UserManager.SendEmailAsync(user.Id, "SGUStore - Xác nhận đăng ký", msg);

                    return RedirectToAction("Confirm", new { Email = user.Email });
                }
                AddErrors(result);
            }

            // If we got this far, something failed, redisplay form
            return View(model);
        }