Мне тут с PayPal про эту фигню вот что ответили: I have reviewed your PayPal account and can see that your payment of ХХХ to ХХХ has been stopped by our internal security system.
For fraud prevention reasons, I cannot see what aspect of this payment has caused our internal security system to intervene. Neither can I override or manually change the security settings to allow your payment to go through.
I can, however, give you advice on the steps you can take to reduce the chances that our internal security system will block any future payments.
If your payment has been blocked you can:
Attempt to make the payment from a different card
Attempt to make the payment at a different time
Ensure that you are making your payment from your country of residence. If possible attempt to complete the payment from your home computer or the computer you most frequently use to access your PayPal account.
При этом они мне написали, что тот мейл, с которого я им писала, у них видите ли не зарегистрирован, хотя именно он у меня в аккаунте и числился всегда. Загадочные вещи происходят...