No EC2 instance showing to run but the OPENVPN is working fine.

Hi,

I followed a youtube video and setup a OPENVPN EC2 and tunneled my home network through that and it was working fine.

Now after a month later, the VPN server is still running fine and I am seeing payment amount increasing and forcasted for next month but when I log into my aws account and go to EC2 I don't see any instances running. 0 instance. but the VPN is working fine.

So, I wonder how to be sure that it is my VPN is what I am using and not a hacker's VPN now. And why the bill is adding up?

Any help for this novice will be appreciated.

Thanks, Repost