How do I turn off annoying messages about an iCloud upgrade on my iPhone

I have recently updated my iPhone 5s to the latest iOS 11.3 update.

The space on my phone is limited, in general, and I have been managing my own backups and

auto stream my photos to other storage for a few years already.

I therefore have no need of upgrading my iCloud storage but have a perpetual message saying that

"iPhone Storage is Almost Full". When I click on it, it is an offer to upgrade my iCloud storage.

No matter how many times I click "Not Now", the message *immediately* comes right back.

In previous iOS versions this type of offer would come up only at a certain threshold of available space and it wasn't nearly as aggressively persistent and I could say that I didn't want to take up the offer and it would only return on a reboot or update.

Now I have over 1.5GB space free and I cannot dismiss this message at all.

I do not want to get into the habit of ignoring the notification counts etc on my settings because I assume it is now irrelevant and so I would prefer to be able to dismiss the message for a time and ideally only pop up at a threshold I can choose.

Is there a way to dismiss and or customise this?