If you want to recover a text message, tap on the thread or message so that it's selected, hit Recover on the bottom right, ...

Chinese cybercriminal groups are the most likely culprits who are developing and constantly updating these "commercial ...

If the appointment arrived via a text in the Messages app to delete it you should swipe from right to left and choose Delete. Your iPhone may then offer to Report Junk, which we suggest you do.

The phishing scam could see your identity stolen, so the FBI have advised people to delete any texts with suspicious links.