Do you receive unwanted advertising calls and messages continuously and always at the least appropriate time?
You should know that your Apple phone has the ability to block calls and text messages from contacts or phone numbers.
Once that phone number is blocked, you will no longer receive calls or messages. The caller will not notice since your phone number will always appear busy and you will not have notifications or interruptions.
Find here the guide to block or unblock phone numbers from your Apple device among the 38 available models.