I tried putting my url in in multiple ways, on my site as well as FB, making sure each was exactly the same. Nothing worked, thus my initial question above.
I've found that Social Connect works, as long as I've disabled WordSocial.
WordSocial works regardless.
SC uses ones own API Key and App Secret;
While WS code has the developers App ID, API Key and App Secret in the code as to allow that app to post on ur behalf.
So, if you have both these enabled, therein lies ur problem.
Guess I'll either try to re-code WS, or find another plugin to post to FB.
Any other solutions...?