Facebook ads - no impressions served - why?

Created a FB ad account. Set up an ad, targeted it, set up a budget etc. Got the ad approved but nothing. No impressions in 24 hours at all.
Trying to get clicks / traffic to my landing page website. Nothing I've tried gets the ad to show to anyone. Starting to think FB ads are a load of garbage.

Tried CPC and CPM. Tried varing the costs from middle of the reccomended CPC and CPM and even over the recommended CPC and CPM bids and nothing. Almost 2 days wasted so far. FB no help either.

Try deleting the campaign and setting it up again.

EDIT: Finally got one to kick off..... Just out of the blue started spewing out stats. Fingers crossed the ad does what it's designed to do.

Best of luck at FB advertising.