If you want to promote on Facebook, you definitely need to read their terms and conditions before, and try to follow them as well as possible dude, either way, you will only have your account banned.

While promotions on Facebook, try creating unique content, be careful while tagging and do not post in bulk

Point 1 - Don't Spam.

There are specific groups on affiliate marketing who allow you to post your products. Join them.

Ask admins of these groups to post your message to all members. They will charge you for this.

Create unique content to make people want to follow you.

Cheers,
Andy

What are you doing that causes your fb account to get blocked? Is this Facebook Ads? Is this posting to groups? Is this Facebook pages? Please share as much details as possible.

I use fb sometimes to promote somethings... I use a lot of tags and one day I woke up with all my posts flagged as spam. I had to mark each and every one of them as "not spam" and then used another account to make sure that I can view them.