Problems to validate signature

Hi everybody,

I’m getting some problems and honestly i have no idea if something works wrong in my code or if it with delivery.

I´ll try explain with max details here, my “figure” code:

        string awsAccessId = "....";

        string awsSecretKey = "....";

        string bucketName = "sentinel-s2-l1c";



        string httpDate = DateTime.Now.ToString("ddd, dd MMM yyyy HHss +0000\n");

        string canonicalString = "GET\n"

                                + "\n"

                                + "\n"

                                + "x-amz-date:" + httpDate + "\n"

                                + "/" + bucketName;



        

        Encoding ae = new UTF8Encoding();

        

        HMACSHA1 signature = new HMACSHA1();

        

        signature.Key = ae.GetBytes(awsSecretKey);

        byte ] bytes = ae.GetBytes(canonicalString);

        byte ] moreBytes = signature.ComputeHash(bytes);

        

        string encodedCanonical = Convert.ToBase64String(moreBytes);



        

        HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);//Received by param

        request.Headers.Add("x-amz-date", httpDate);

        request.Headers.Add("Authorization", "AWS " + awsAccessId + ":" + encodedCanonical);

        

        HttpWebResponse response = (HttpWebResponse)request.GetResponse();

        return  response;

The return error on my try catch:
The remote server returned an error: (403) Forbidden

Running by CLI, validating if i’m able:

aws s3 cp s3://sentinel-s2-l1c.s3.amazonaws.com/tiles/29/T/PF/2018/8/28/0/B04.jp2 B04.jp2. --region eu-central-1 --request-payer requester -profile MyName

The return is:
Unknown options: -profile, MyName

I just dont understand what are happend here. I’m following the documentation aws:
https://docs.aws.amazon.com/pt_br/AmazonS3/latest/dev/RequesterPaysBuckets.html

So, i will appreciate any help or sugest here.

Thanks