i work as an affiliate manager and a lot of my Pubs reach out to me on complaints from time to time on Facebook
If you are kin on promoting Voucher lead gen /Sweeps offers on Facebook, I would suggest you cloak and buy as much Facebook account you can.
even with cloaking, there is no guarantee that Facebook would not ban your account lol
another option you may have is to promote Whitehat offers for Europe/ US- offers such as Home warranty, home improvement( windows etc) solar and more are really working now for Facebook.
so yeah, not much to say about this, however, if you have specific questions feel free to reach out to me! i am sure some affiliates on the forum can share their experience with you in details
Hope this helps