var client = new RestClient("https://api.vietqr.io/v2/lookup");
var request = new RestRequest(Method.POST);
request.AddHeader("x-api-key", "<API_KEY_HERE>");
request.AddHeader("x-client-id", "<CLIENT_KEY_HERE>");
request.AddHeader("Content-Type", "application/json");
@" ""bin"": ""970432""," + "\n" +
@" ""accountNumber"": ""222777313""" + "\n" +
request.AddParameter("application/json", body, ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
Console.WriteLine(response.Content)