Hi,
If you are talking about audiences uploaded via ads.twitter.com, please contact the support team via the Help / question mark on the Ads UI and request for support there (this will route and get sent to nearly 24x7 operations team).
There is another thread about processing time issue so I could guess that it’s probable the pipeline is behind, due to the nature of the way so many requests can get backed up it sometimes takes several days to get caught up again.
Again please go ahead and send a request for support via Ads UI if this issue is not related to uploading from an API tool.
For Ads API - we require hashing to protect the user privacy, the Ads UI is also doing hashing in the background before it sends it to our servers when you upload a non-hashed file.
Thanks,
John