I’ve purchased the Quform plugin many times, each one for another site of course. But for some reason every few days or weeks I found one or more that lost their verification key. I’m keeping all verification keys in an ordered table with site name and verification key, so I will not mix them, but still it happens.
It just happend yesterday with appyapp.co.il . Could you please check what went wrong?
I previously asked that you will lock-in these keys, or let each user to manage them on online admin area. Since I can’t always check for these sites. Another option is to get an email alert if the verification key is lost.