Sepcharge.com
Why are they billing me Who are they

I am receiving bills/card authorizations automatically withdrawn from my account, dated from a time when I had no access to the internet/computer.
All to this so called SEPCHARGE.COM who's information is not to be found on the internet, my Bank cannot find them.
who are they? how did they get my details? what are they charging me for?
I am a person with no income, medical disabilities, and these people/this business have just put me in minus dollars with a large debt