Sorry to hear the lens cover detached from the lens. Unfortunately, we don't have a self-repair procedure we can provide. However, this can be repaired by our Factory Service Centers. All you will need to get this process started is complete a repair request on our website. To help you with this, I have provided a link below, which will take you directly where you need to go:
I suspect all these strange posts with everything in the subject header are some kind of spam. Plus, the questions make no sense.
2/07/2023: New product announcements!EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM