async private void connectToLidlConnect()
        {
        string user = UserName;
        string pass = Password;

        ASCIIEncoding encoding = new ASCIIEncoding();
        string postData = "login=" + user + "&mdp=" + pass;
        byte[] data = encoding.GetBytes(postData);

        WebRequest request = WebRequest.Create("https://kundenkonto.lidl-connect.de/login.html");
        request.Method = "PUT";
        request.ContentType = "application/x-www-form-urlencoded";
        request.Headers["ContentLength"] = data.Length.ToString();

        using (Stream stream = await request.GetRequestStreamAsync())
        {
            stream.Write(data, 0, data.Length);
        }

        using (WebResponse response = await request.GetResponseAsync())
        {
            using (Stream stream = response.GetResponseStream())
            {
                using (StreamReader sr = new StreamReader(stream))
                {
                    //
                    var a = sr.ReadToEnd();
                }
            }
        }
    }

async public Task LogIn()
    {
        CookieContainer container;

        var request = (HttpWebRequest)WebRequest.Create(LoginPageAdress);

        request.Method = "PUT";
        request.ContentType = "application/x-www-form-urlencoded";
        var buffer = Encoding.ASCII.GetBytes(loginData.ToString());
        request.Headers["ContentLength"] = buffer.Length.ToString();
        var requestStream = await request.GetRequestStreamAsync();
        requestStream.Write(buffer, 0, buffer.Length);

        container = request.CookieContainer = new CookieContainer();

        var request1 = (HttpWebRequest)WebRequest.Create(new Uri("https://kundenkonto.lidl-connect.de/mein-lidl-connect/mein-tarif/uebersicht.html"));
        request1.CookieContainer = container;

        var webResponse = await request1.GetResponseAsync();

        var response = (HttpWebResponse)webResponse;

        // Get the stream associated with the response.
        Stream receiveStream = response.GetResponseStream();

        // Pipes the stream to a higher level stream reader with the required encoding format.
        StreamReader readStream = new StreamReader(receiveStream, Encoding.UTF8);

        var html = readStream.ReadToEnd();

        CookieContainer = container;

        requestStream.Dispose();
        response.Dispose();
        readStream.Dispose();
        webResponse.Dispose();


    }