Youtube app won't notify me!

This is getting so annoying, I really just wanna know when a particular youtuber uploads something but the Youtube app will not notify me!
I've clicked the little bell icon beside the 'subscribe' button and selected 'all' from the little options menu. Went to my notification youtube settings and ticked any of the options that applied to me. Went into my iPad's settings and allowed notifications from the youtube app. But I'm stil not getting any notifications!
What do I have to do? Am I missing something?

(I'm using an iPad Air 2 running iOS 10.3.3, btw)

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Where can I get the cheapest ipad 2 online?

My ipad broke and it was one of the ipads like they have at school and i just want another that is under $110

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