Hi Pedro and a warm welcome to you.
I think the way to approach your question would be to report this to your prescribing physician, if that is how you got the Vaniqa. Yes, this product indeed is for fine female facial hair, not coarse genital hair. Here is a contact form for Vaniqa : http://www.vaniqa.com/contact
. You can report this to the FDA as well by clicking on the link provided at the bottom of the page at the given website. I'm curious about this as well, so I will ask a pharmacist to peruse her sources and see if there is something mentioned, as well.
Electrolysis would be highly effective for shaft hair, but you may need anesthetic help.