marketing in facebook groups

Hi

I am looking for advice, hints , tips , guides on how to effectively market in make money online, buy sell groups on facebook.

I got a GREAT legal I might add opportunity for the UK market where I help people make money with no risk for my customers. My only problem is that my service sounds too good to be true and as such I am having a hard time recruiting.

I got a fake facebook account bought on here so I need to post conservatively as any facebook road block will see my account burned as I cant even verify phone nr via sms as its not my number.

any tips on how I can effectively market my offer and still get volume without getting my account burned?

all answers will be greatly appreciated.

Firstly, ask people to comment "ME" on the publication. That will increase the engagement of the post.
Then, what works well is to give extra gift (money?) to people to comment your publication when they used your service successfully. That will build trust and your publication will still be on the first page of the group if done well.

If you have a free stuff for giveaway that's will work to attract new clients to take a look on your products.

so if people comment on my post that will cause it to stay on front page longer? meaning that more people will see it and if other people comment on it, people are more likely to view it as relevant and comment / contact me too?