RestSharp - Request to Spotify API - spotify

Question

RestClient Client = new RestClient(Settings.Url)
{
UserAgent = Settings.UserAgent,
FollowRedirects = false
};
RestRequest Req = new RestRequest(Method.POST);
Req.AddHeader("Content-Type", Settings.ContentType);
Req.AddHeader("Accept", "application/json, text/plain, */*");
Req.AddHeader("Accept-Encoding", "gzip, deflate, br");
Req.AddHeader("Accept-Language", "en-US,en;q=0.9");
Req.AddHeader("Referer", Settings.Referer);
Req.AddParameter("remember=false&username=xxx&password=xxx&captcha_token=&csrf_token=", ParameterType.RequestBody);
Client.ExecuteAsync(Req, response =>
{
if (response.StatusCode == HttpStatusCode.BadRequest)
{
Console.WriteLine("Access DENIED!", Color.DarkRed);
}
else
{
Console.WriteLine("Accessed.", Color.Green);
}
});
This is my basic Request.
here is my Class Settings:
public class Settings
{
public static string Url = "https://accounts.spotify.com/api/login";
public static string Referer = "https://accounts.spotify.com/en/login/";
public static string UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36";
public static string ContentType = "application/x-www-form-urlencoded";
}
So my problem is that I always get the Access Denied even if I put in correct details.
This is how the Form Data looks like:
remember: true
username: fsdfsdfds
password: sfdfdsfsd
captcha_token:
csrf_token: AQC-Y5OnqJvcV1PLrsvXFU-FdVNANBKZOpB5S3vDxCKH0VpPE3flpkMNJKheqQGzut066RziyASQSDeB-Tj7I0TSKtmtZ3FKs6tLMnCUkES4Lr2aKwIy8mh80NWtX70uU-i6
Do I need to bypass the CSRF_Token somehow?
Or can you find another Error?