Have you submitted your podcast in Apple Podcasts Connect? It can take 24 to 72 hours for Apple to process the submission, in our experience. 

If a few days have passed and your podcast still is not active in  Apple Podcasts Connect, then you should contact Apple.

Update: May 2018
We have observed significant delays in Apple's processing of podcasts—as long as 10 days. Shows are being processed, and some very quickly, but others are taking considerably longer than usual.

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