Please how to find case repair ID

Follow the steps in the support document you posted from. It explains exactly what needs to be done t find your case ID.

How to find your Case or Repair ID - Apple Support

Please start your own post (rather than hijacking someone else's)) by clicking on the "Post" menu item at the top of the forum. Select an appropriate forum for it, and provide as much detail as possible about it.

Apple is the best company!Thanks for your service