Look at the receipt, not only the programme logo
Find the confirmation for the subscription and identify whether it names a Prime Video Channel. A channel inside Prime Video and a direct subscription can display the same discovery+ programmes while using different account entitlements. The logo does not join those accounts.
Open Prime Video with the Amazon account that holds the channel and locate the discovery+ channel there. If viewing works, that confirms the purchased route. It does not prove that another app should accept the same payment.
Understand the difference between an app-store payment and a channel
A payment associated with a device company can have more than one meaning. It may be an in-app subscription or an add-on watched within that company’s service. The exact product name and receipt settle which instructions apply. Do not rely on the hardware brand alone.
The official US channel help is explicit about Prime Video. Other countries and partners need their own current instructions; do not turn the US rule into a universal claim about every discovery+ offer.
Use the channel’s billing controls for the channel
The same official help directs US Prime Video channel cancellation to Amazon’s channel-management area. Removing the direct discovery+ app is unrelated to that channel’s billing. Similarly, changing a discovery+ password does not identify which Amazon account owns the purchase.
If you intentionally want to move routes, first review the existing renewal and cancellation conditions. Record the current access period and the new offer before making a change. There is no need to create overlapping payments while merely troubleshooting a login prompt.
Collect the right details for support
Keep the product name on the receipt, the app in which playback works and the app showing the payment request. Add the service country and device model. This gives support a clear entitlement question instead of a general report that discovery+ is broken.
If the purchased channel also fails, test an ordinary title within that same channel and record the message. That is a new playback or billing problem within the authorised route, and should be investigated on its own evidence. Leave order numbers, payment details and sign-in links out of public posts.
Questions about this guide
Does the US Prime Video channel unlock the separate discovery+ app?
No. The official discovery+ help explicitly says it does not.
Will uninstalling discovery+ cancel an Amazon channel?
No. Follow Amazon’s channel-management cancellation route.