Identify the viewing mode while the problem is visible
Check whether the player is showing the live channel, a restarted broadcast or an on-demand episode. Record the programme title and the entry point used. The difference matters because a scheduled broadcast can contain its normal breaks even when the account has a paid upgrade.
If you entered from Live TV, do not compare the result with an ordinary on-demand episode without noting the change of mode. A programme can have more than one route in the same app, each with different controls and conditions.
Check the account without changing the subscription
Look at the account that is signed in on the affected screen and confirm whether it shows Channel 4+. A phone signed into the paid account does not establish the television’s account. Where the billing route is through an app store or partner, use its actual receipt to identify the purchase.
Do this before selecting another trial or upgrade. A duplicate subscription introduces a separate payment problem and does not explain why an allowed exception appeared. Keep payment details private when collecting evidence.
Separate a programme exception from a general pattern
Channel 4 acknowledges contractual exceptions. Compare the affected programme with another ordinary on-demand episode on the same account and device. This is a diagnostic comparison, not proof that every title should behave identically. If only one programme retains an advert, its title is especially useful to support.
For promotional trails, describe what was shown rather than simply counting it as a commercial break. The official exception names both advertisements and promotional material, which helps frame the question accurately.
Give support a reproducible report
A useful report includes the title, season and episode, live or on-demand route, device model, app version and whether the upgrade is recognised. Say whether another on-demand programme behaved differently. This helps support distinguish an entitlement problem from the advertised viewing conditions.
Avoid repeatedly clearing account data as the first response: doing so removes the signed-in state before you have recorded which account was affected. First establish the account and viewing mode, then follow the official troubleshooting appropriate to the observed problem.
Questions about this guide
Does Channel 4 promise that live TV is ad-free with Plus?
No. Its app listing expressly excludes live viewing.
Should one advert trigger another purchase?
No. First verify the account, viewing mode and documented exceptions.