It was a credit card. The specific issue was that I bought a plane ticket on edreams and was supposed to get 100 euros discount which was shown on their webpage

It was a credit card. The specific issue was that I bought a plane ticket on edreams and was supposed to get 100 euros discount which was shown on their webpage but I ended up paying the price without the discount and the email didn't show the discount either. Back then there was no 3d secure check, so I didn't get to confirm the amount until after it was debited.