The update stripped my reg key and blew away my LicenseConfig.json file. I'd call that taking my key away.
It was purchased from a tech seller on Amazon. Authorized or not, show me the list of authorized resellers. I'll wait. I see no difference with this over buying from a local non-chain PC shop.
I used it on a single device (I've upgraded PC's a few times, but always deactivated my old device prior to wiping to prevent any issues, honestly had no idea until coming here regarding this issue that it was capable of 3 PC installs, my box said 1 PC). I had my key written on a piece of paper last time I upgraded my pc, it has since gone missing. That is all on me.
Yes, my key is still valid, after I found it in an old file. If I did not have that old file, I would have completely lost my license. And because the software update removed it, I could not provide it to support, and without that, they could not give me a replacement, even with the proof of purchase provided.
An update should not have removed this configuration. I take equal blame for not keeping my key in a safe place.
@SPDIF this would have been impossible for me at the time. I purchased this license back in 2014. Their account site did not even debut until 2017 (https://web.archive.org/web/20170801000000*/https://my.malwarebytes.com/en/login). Tonight, I registered my key to my new account.