Sorry my screen hadn't refreshed properly . . . I can see the fix. No idea I'd installed Peel but it's now off my phone and in the bloody bin. Thanks all.
I'm also having the same issue. It's bloody annoying. I set it to silent, the operating system doesn't need to endlessly tell me it's in silent. Whoever thought of this "helpful" notice should possibly be shot? Harsh I realise but really . . .