I just had a call from a UK mobile, they said they’re from Amazon and need to check how I’ve paid for my last order. It rang some alarm bells because there was always a delay between me saying anything and their replies, and a long pause after I answered the call. When I said I’ll call them back on the Amazon customer service number, they hung up. Just posting here to warn others, in case it is a phishing attempt and they’re after credit card details.