Compare the app name with the receipt
Look at the application’s store entry and the product on the payment confirmation. HISTORY and HISTORY Vault share branding but use different access models. Open the app matching the purchased product before resetting a password.
A subscription to Vault is not a cable-provider credential. Entering the Vault email into a provider form cannot be expected to authorise the other app’s locked episodes.
Understand the two catalogues
The HISTORY broadcaster app uses a participating TV package for locked content, with selected unlocked material. Vault offers its own paid on-demand series and documentary collection. Do not infer that every current broadcaster premiere or live programme is included in Vault.
Search the exact title and season within the product actually purchased. A related franchise tile or documentary clip does not establish the complete episode collection.
Check the purchase route if the correct Vault app is still locked
Determine whether the receipt is for direct Vault access, an app-store purchase or a partner channel. Follow the current instructions for that route and compare the signed-in account. The original purchase app can be a useful place to verify that entitlement is recognised.
Avoid buying another plan to test a login. First preserve the receipt, product name and exact prompt. A second payment does not establish why the first one was not recognised.
Use the provider route only for an actual HISTORY package
If your aim is the HISTORY broadcaster app, confirm that your participating television package contains the channel. The official help says internet-only and phone-only products do not satisfy that requirement. Use the provider list presented by the broadcaster.
For support, state the full app name, intended title, country, billing route and whether the prompt asks for a provider or a Vault subscription. Those details directly address the documented wrong-app possibility. Keep payment numbers and passwords out of public screenshots.
Questions about this guide
Does Vault need a TV-provider login?
No. Its help says it is independent of TV providers.
Does a Vault purchase unlock the separate HISTORY app?
No. The provider explicitly says it does not.