facebook competitions

Hi I found this competition being run on a page similar to my business. ⭐️⭐️⭐️ COMPETITION TIME ⭐️⭐️⭐️ WINNER ANNOUNCE TONIGHT 9PM... ⭐️⭐️ 3 carpets cleaned for free ⭐️⭐️ 1. Like the post 2. Like the page 3. Tag 5 friends 4. Share the post Must do all 4 Winner will be picked at random...

I'm fairly new to all this and desperately trying to get more likes to my page, but so far failing quite miserably. My page struggles to get even 3 or 4 likes a day. Is offering a prize (e.g. to a random person who likes my page during February) okay with FB? Or is this prohibited? Also, has...