I finally caved in and ordered a replacement Lloyds card - the peeling top corner was getting worse and it just frustrated me too much to look at it!
The replacement arrived today (@Seb the name did carry over! 
) and so I went to block the old one in the app, since it stays active for 30 days. In doing so I noticed this nice little bit of UI:
Rather than having to work it out by the last 4 digits, there are handy New and Old card labels to show which is which, and I especially like the use of the arrow. Impressive for an old fashioned bank!