C# Code example:

Modify the apiUrl, accountNumber, and bankCode variables in the code to match your specific requirements.

using System;
using System.Net.Http;
using System.Threading.Tasks;
using Newtonsoft.Json;
 
public class AccountDetails
{
    public string AccountName { get; set; }
    public string FirstName { get; set; }
    public string LastName { get; set; }
    public string OtherName { get; set; }
    public string AccountNumber { get; set; }
    public string BankCode { get; set; }
    public string BankName { get; set; }
}
 
public class Program
{
    private static readonly HttpClient client = new HttpClient();
 
    public static async Task Main()
    {
        string apiUrl = "http://nubapi.test/api/verify";
        string accountNumber = "12345678910";
        string bankCode = "999992";
        string bearerToken = "Your_Bearer_Token"; // Replace with your actual Bearer token
 
        client.DefaultRequestHeaders.Add("Authorization", $"Bearer {bearerToken}");
 
        AccountDetails accountDetails = await GetAccountDetails(apiUrl, accountNumber, bankCode);
 
        if (accountDetails != null)
        {
            Console.WriteLine($"Account Name: {accountDetails.AccountName}");
            Console.WriteLine($"First Name: {accountDetails.FirstName}");
            Console.WriteLine($"Last Name: {accountDetails.LastName}");
            Console.WriteLine($"Other Name: {accountDetails.OtherName}");
            Console.WriteLine($"Account Number: {accountDetails.AccountNumber}");
            Console.WriteLine($"Bank Code: {accountDetails.BankCode}");
            Console.WriteLine($"Bank Name: {accountDetails.BankName}");
        }
        else
        {
            Console.WriteLine("Empty response received.");
        }
    }
 
    private static async Task<AccountDetails> GetAccountDetails(string apiUrl, string accountNumber, string bankCode)
    {
        try
        {
            string url = $"{apiUrl}?account_number={accountNumber}&bank_code={bankCode}";
            string response = await client.GetStringAsync(url);
 
            if (!string.IsNullOrEmpty(response))
            {
                return JsonConvert.DeserializeObject<AccountDetails>(response);
            }
        }
        catch (Exception ex)
        {
            Console.WriteLine($"API request failed. Error: {ex.Message}");
        }
 
        return null;
    }
}

Please replace "Your_Bearer_Token" with your actual Bearer token. Also, make sure to replace 12345678910 and 421 with the actual account number and bank code you want to retrieve.