I am having the same problem. I hate to admit that you are not the only victim. Hope they have corrected yours.
I paid for Unlimited Sites and Lifetime License. I have shared the PayPal paid invoice with you but you guys have refused to reinstall my deleted account.
Now, I have no access to API as just like you pointed out, the API keys have disappeared from the account’s web interface
At this point, is this more of fraud?!
Why would people want to buy lifetime license with these guys when they will just get to a point and delete the API account?