Otto is the worst online shopping I have ever seen. It requires the customer to submit personal information such as ID card or passport before shipping products to you. They said this is because of improving customer systems. But Otto didn't mention this reqiurement when you registered your account and made purchases. This is very private data. After you waited for a week, otto said that they would not deliver the products if you did not give your personal information. Otto also said that they required this for German law. No other German shopping websites have such requirements. It is so confusing. This shopping wasted a lot of my time and expectations. And the customer coupons Otto gave me will not be returned to me if I will not give them my private information. By the way, the customer service is very unfriendly as well. When I mentioned that Amazon Shopping in Germany does not require such private information, she said that you can just go to Amazon to buy, and if you buy on Otto, you have to give us information. The worst shopping experience.