I sometimes use Amazon, and have on occasions taken the free Prime membership for a month, to enable free and next day shipping. The last one of these was cancelled a couple of weeks ago. All Amazon transactions have always been in UK £s. A couple of days ago, I noticed on my daily review of my bank accounts, that my credit card had a new charge on it, for Amazon Prime, charged to Washington State in the US. My bank had added a currency conversion fee to this. I had no idea what this might be about. I went on to my Amazon account, and it confirmed that I do not have an active Prime account. It also showed no sign of the charge that had been taken. I 'phoned Amazon, and talked to a real person, who confirmed these details, and stated clearly that the charge did not come from Amazon. I then called my bank, and it confirmed that the charge was just like an Amazon-registered card, it allowed future charges to be made without any further checking. The conclusion was that my card had been hacked, and so it was cancelled and a new one is hopefully on the way. Today, my bank has issued 'temporary' refunds of both the charge and the fee, which is good.
So far, the process has gone according to plan, I just hope that it runs without interruption for the 60 days needed to confirm that it is all good.
I have no idea who might have hacked the card, maybe it was included in one of those hacking breaches that we read about, where hundreds of card details are vacuumed up and sold.
It is a pity that the cancellation of the card has not resulted in the cancellation of the existing charges on it. Oh well.