I had a similar situation. I had a facebook page promoting facebook ads coupons.Later i added free ads offer. At that time they sent me an email stating they saw page and they wanted it to shut down, cause fb is not giving any free ads. It had hundreds of fans.Almost all of them are targeted and half of them are direct buyers. I didn't want any trouble or lawsuits so I handed it over to them.Haven't heard from them since. The page is no longer available also. What i'd suggest is that,Lay Low.Grab all your lead's email ID safe,delete everything from the host,Hand over the domain to the bullies,Make yourself safe.You can't stand lawsuits against a giant like FB ,well unless you have a private jet to visit your girl friend every weekend.
Then start everything from a better safe place (offshore hosting mostly) with a discrete domain name (not using TM names).Let your customers know,that you are upgraded your server for more efficiency and even introduced a 'Buy Three get One Free' Offer.There is life waiting bro.Don't worry,you are among good and serious people.Best Of Luck.
ps : + that , Youtube took down my video promoting that page (which had 1k+ likes and 12k+ views and 50+ comments ,all genuine ) left me a infraction for breaking their guidelines.I was on first 3 rank for the keyword " easy facebook advertisement" in the year 2014