How to reject spam from Apple's mobile calendar?

Apple mobile calendar spam closing method is as follows:

Tools: iphone 13, IOS 15.4. 1.

1. Open the iPhone information page and click to enter the spam content page.

2. Click the I icon in the upper right corner of the spam page.

3. After entering the detailed information, if you only need to receive the information without prompting, you can open the following Do Not Disturb mode.

4. If you want to completely block this number from sending short messages and stop receiving such advertising information, you can click the phone icon behind the phone number.

5. Then select the red number below to block this call, and click OK. This operation is equivalent to adding this number to the blacklist, and you won't receive any text messages or phone calls from this number in the future.