I Need An Automated Post Social Sharing Wordpress Plugin

I have been using linksalpha free trial and it has expired, i wanted to renew it to pro plan but it was telling me something that i don't understand.
if there is any clue how i can activate it to pro plan just let me know.

Please is there any one that has a clue about another Auto Post sharing plugin that can publish to various social network such as facebook timeline, Groups , and facebook pages, Twitter and linkedin etc!

Please any one with useful information should reply and tell me about the plugin name so that i can find it and install it.

Both free plan and pro plan is accepted.

Try the "Social Networks Auto Poster" WordPress plugin (SNAP). It can post to App.net, Blogger, deviantART, Diigo, Delicious, Facebook, FriendFeed, Flickr, Flipboard, Google+, Instapaper, Kippt, LinkedIn, LiveJournal, Plurk, Pinterest, Scoop.it, SETT, StumbleUpon, Tumblr, Twitter, vBulletin, vKontakte (VK), WordPress.com, and YouTube. (source: http://will.website/automatically-share-wordpress-posts-social-networks-18/)

i need the one i can add as many groups as possible and as many fb account as possible. if you have linksalpha you will understand what i mean. the reason why i am looking for other is because i paid for linksalpha and is not posting again.

no other help guys?

I used snap, pro version lets you post to unlimited accounts for $50...