*****ulent activities surfacing

I've not been using rain in over 5 years and suddenly I receive an email invoice as if I'm a customer.... I've tried to be in contact to request a removal of my information of your database since I have no dealings with you but you constantly tell me to do it online which it doesn't give me an option to when I try... Please I am begging you to please completely remove me of your database or else I will weight my options to pursue legal assistance... I was done with you years ago and I feel it oddly strange that out of the blue I revive an email telling me that my account is still active and I'm due to make payment for something I have not signed up for.