Only big advertisers run ads ion fb. now..It was easier last year..I was working on fb. ads I had roi income 40-60% and it was great...But fb. is now very rigorous. I remember that they did not approve any of my ads for one whole month. I tried with different account also with small daily budget $50 and they still have banned my ads all the time..so I have stop working for over a 9 months.