Often an issue with a podcast is a problem with one of the listening platforms where listeners find your podcasts. In cases like these, where Megaphone can't help, you may want to reach out to the podcasting platforms directly. Here are some of the public Support Contacts we've been able to find:
Spotify
You can click on this link to message the Spotify For Podcasters support team or send an email to: podcasters-support@spotify.com
Apple Podcasts (iTunes)
You can send an email to: podcastsupport@apple.com
Stitcher
You can send an email to: partners@stitcher.com
Check out this article for Google Podcast Manager support.
You can use the contact form here.
iHeart Radio
You can submit a ticket to (select "Technical Issues"): https://help.iheart.com/hc/en-us/requests/new?ticket_form_id=156867
NPR One
You can submit a ticket to (select "Request Technical Assistance"): https://help.npr.org/customer/portal/emails/new
TuneIn
You can submit a ticket to (select "Incorrect information about a station or podcast"): https://help.tunein.com/contact