Adding post to offer sections

Hi

I just joined a few days back.
And would like to be a active member of this forum by helping the members and offering them discount on our products
Just 2 days back I was able to post in the offers section
but today i cant
Has the rules been changed?

Should I have n number of posts etc before I can post there?

Also would like to know how I can post in the Contest section?
What are the rules?

Thanks

yni420