actually, now, I think you're likely to get it back
PM badspot about it, I would suggest
a while ago, I would have said that you wont be successful because there's no way to prove you own it
but now, just posting is proof that you bought a key
personally, I think badspot should add something somewhere in your settings or somewhere that displays your key
but until something done, just PM him
There's no way that Badspot would make it so that it would just show your key in your options.
Blockland doesn't require you to log in, so anyone could then get on and steel your key.
Also, I would recommend sending Badspot a PM somewhat like this:
Hey, I need my key.
My previous e-mail was hacked and shut-down, so I can't get my key.
My last e-mail was <YOUR LAST E-MAIL ADDRESS HERE>.
My new e-mail address is <YOUR NEW E-MAIL ADDRESS HERE>.
Please see if you can either send me my key or change which e-mail it sends it to.
Please!
This should be okay because:
1. The fact that you can use the Blockland forums proves that you have a key.
2. Only YOU can log in to your Blockland Forums account, so there's no way that this is a trick.
3. Only YOU can log in to your e-mail, so, again, there's no way that this is a trick.
There is, although, always that chance that Badspot will ignore the PM because the title says, "Lost Key", or something, and you didn't contact BL Support.
Just try and see.
If this doesn't work, you'll have to buy a new account and send Badspot a PM with your OLD account telling him to revoke the key.
At least it will give you a fresh start if that happens.