How can I e-mail or speak to "customer service" concerning a problem an advertiser using yahoo.com?

[hadenough]

A company selling a fat burning drug, called "Raspberry Ketone", Is taking Family names from my Facebook account, and sending them to ME under my personal e-mail using THEIR names. I get two to four of these a day. Each time I open the link it is different, and each time the yahoo.com address is different. If I open the link, it shows the advertisement featuring Dr. Oz promoting this drug. Once opened it is hard to close. Once opened it shows an address of http.diet-secrets/.com/diet/ketonereports-p
/index.html.
It appears that they have the ad blocked so I can't send it to you. I can't find a way to contact them. This has to be a scam and Illegal.
I've tried to send a message to them using the same yahoo address that they use and it comes up as not valid.
Can You Help?? Thanks So Much, hadenough.

[john]

I do not know but I've been using raspberry ketone. The Weight was reduced, but not much.