Have you actually checked your device management settings?

Yes. In Settings > General > VPN & Device Management, it says 'Sign in to Work or School Account'. Is there a different device management setting that I should be looking at?

	▲	Schiendelman 9 hours ago \| parent [-]
		That's the one. I was worried you might have something you didn't know about!

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teruakohatu 9 hours ago | parent | prev [-]

Yes, there are alt app stores that try to get you to agree to installing a MDM