private async Task <bool> RegisterAsync()
        {
            try
            {
                using (var service = Config.GetMobileService())
                {
                    var regsiterRequest = new RegisterRequest()
                    {
                        Email             = this.Email,
                        Password          = this.Password,
                        ReenteredPassword = this.ReenteredPassword,
                        Gender            = Gender.Unknown
                    };
                    regsiterRequest.CheckValidity();

                    await service.Register(regsiterRequest);

                    return(true);
                }
            }
            catch (Exception e)
            {
                await ExceptionHandler.Handle(e);
            }
            return(false);
        }