How can I permanently remove the irritating copilot icon from my word document

How do I get rid of this from the documents I create? I have copilot switched off in preferences and I have it deleted from my menu bar and yet, I just can't get rid of this icon/text?

How do I just get a normal word document?

I noticed that my subscription sneakily went up to £105 per year from £80 per year and the only way to revert back to my old subscription was to cancel it. So, I don't have copilot switched on, nor am I or will I pay for it but the copilot prompt just won't disappear.

Any ideas would be welcome... thanks