I bought a mobile phone case for my 13PRO camera but it can’t be put on it. What’s going on?

At that time, because I didn’t buy the right phone case

There are many styles of mobile phone cases, and there are also many styles of mobile phones. You can buy whatever style of phone case you want. , if you don’t know, you can sell it. If you buy an iPhone 8, how can you buy an Apple No match