I want my repair ID for my iPhone

To find your Case or Repair ID for support, service, or repairs, sign into My Support at https://mysupport.apple.com/ with the same Apple ID that you used to start your support, service, or repair, then look under the Recent Activity section.

Please follow the instructions in the link above your post. if you are having a problem with a specific step, let us know and describe what happens in detail.