The rotation lock button in Control Center only appears if you have set your hardware switch to mute. If you have set the switch to rotation lock, the software mute button takes its place in Control Center.
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Your screenshots won't help him/her. If you have the switch set to rotation lock, it doesn't appear in CC (mute take its place).
Got it. I have mine set to lock rotation so all I see in the control center is Mute. I suppose if I set the lock switch to Mute I would see Lock Rotation in the Control Center. This just never occurred to me. lol.
Thanks everyone for the replys.