Well recently I got caught out. I have been abroad for a couple of months and I forgot that auto-redeem was active on my account. I came back to find that even though my village was taken just after I left, premium kept being used on the account. I'm not sure how often this happens, but it is quite the oversight regardless. I'm hoping a fix of some sort can be implimented. For example, prem doesn't auto-redeem if you don't have a village.