The Webmaster (all hail the Webmaster and name your first born after him) was also stumped, but on digging deep into the quagmire of info discovered an encrypted file containing stored encrypted card details. I agreed with him that was probably where the issue was, which did not occur until the club changed payment portals from PayPal to Stripe just over a year ago. He asked if those card details (which were encrypted, just to be clear again) should be deleted, to which I said yes, do it please. So if anything goes wrong, it’s on my head.
The only tiny inconvenience is that no one will be able to store their card details backstage any longer, so you will need to input your full card details every time you purchase or renew your membership, but better that than the system taking it without your or our knowledge.
Will keep an eye on this…. Pass the vodka, please.