In reply to Blue Straggler:
> Seamless in normal operation but I had to replace the bank card that is linked to it, due to a lost wallet, and now they can’t take my money and are giving me notices about that but the system seems to have a bug or glitch because when I try to amend the details, it all crashes (well it reverts to “page 1”). Tried via iPhone, MacBook Pro and Dell laptop. All failed
In the end, before I got around to actually contacting Apple, they informed me my iCloud was full, which effectively meant they'd cut it from 50Gb to 5Gb due to non-payment (although I didn't see anything deleted!), and THIS enabled me to finally go in and change the payment details. I was half-waiting for this, to be honest, as I did see someone post on a thread about the same issue, saying they did the same and it was fine.