We frequently get catalogues from one of those places that sells garden equipment, home improvement stuff, etc. It is possible that I bought something from them some years ago, maybe one of those booster cushions, but I can't be absolutely sure if it was this particular suppkier or not. I usually use PayPal for such purchases, rather than using my bank card directly; but this is not a guarantee.
Checking my bank statement for last month, I saw a charge to this company of £75 or so. I knew that I had not bought anything from them recently, and certainly not £75-worth. I sent them an e-mail message, asking what this was for, and got a reply saying that they had removed me from their "Priority List", and would be refunding the £75 to my bank account. I had no knowledge of any "Priority List".
So: The earlier purchase I mentioned may well have been to this company, which is how they had my bank account details. Or it may not, so they got the details some other way. There was no information provided on what this "Priority List" is, nor how or when I was deemed to have signed up to it. It is interesting that there was ostensibly no hesitation in agreeing that I did not want to be a part of this, nor if the £75 was purely the cost to be put on this list, as there was no mention of any goods ordered. I will check later to see if the money has been refunded. I will not be greatly surprised if it has not (yet?).