How to use Reflection in factory design patterns in C# .Net core

I've implementing the Factory Method in c# .Net core in the following way.I have several concrete products let's say Gateway1 and Gateway2

public interface IGateway
{
    void Test();
}

ConcreteCreator:

public class PaymentFactory
{
    private readonly IPaymentTransactionRepository _paymentTransactionRepository;
    private readonly IPaymentGatewayRepository _paymentGatewayRepository;

    public PaymentFactory(IPaymentTransactionRepository paymentTransactionRepository,
        IPaymentGatewayRepository paymentGatewayRepository)
    {
        _paymentTransactionRepository = paymentTransactionRepository;
        _paymentGatewayRepository = paymentGatewayRepository;
    }

    public IGateway ExecuteCreation(string bank)
    {
        switch (bank)
        {
            case "Gateway1":
                {
                    return new Gateway1(_paymentGatewayRepository);
                }
            case "Gateway2":
                {
                    return new Gateway2(_paymentTransactionRepository, _paymentGatewayRepository);

                }
            default:
                {
                    return null;

                }
        }
    }

}

ConcreteProducts:

public class Gateway1 : IGateway
{
    private readonly IPaymentTransactionRepository _paymentTransactionRepository;

    public Gateway1(IPaymentTransactionRepository paymentGatewayRepository)
    {
        _paymentGatewayRepository = paymentGatewayRepository;
    }

    public void Test()
    {
        //code
    }
}

public class Gateway2 : IGateway
{
    private readonly IPaymentTransactionRepository _paymentTransactionRepository;
    private readonly IPaymentGatewayRepository _paymentGatewayRepository;

    public Gateway2(IPaymentTransactionRepository paymentGatewayRepository,
        IPaymentGatewayRepository paymentGatewayRepository)
    {
        _paymentGatewayRepository = paymentGatewayRepository;
        _paymentGatewayRepository = paymentGatewayRepository;
    }

    public void Test()
    {
        //code
    }
}

This code is running but I want to make two changes to it.

1- How to implementing the Factory Method by Reflection?

2- How to pass in multiple parameters to Create ConcreteProducts?

thanks advance