It is okay to receive a notification for any message for once, but when you get frequent notifications for the same message, you are pissed off. Many iPhone users must have faced this situation when they receive alerts twice or more for the single message.
This can be very pestering while you are attending an important meeting or a conference. It can be annoying too when you are having a good time with your family at a multiplex and suddenly a glare pops up. But there is always a solution for a problem.
Here is How to Disable/Turn off Repeat Message Alert Notifications on your iPhone or iPad
Listed below are a few simple steps:
Note: It is advisable to protect your Notifications by your Touch ID as it can be tampered by your friends or probably by your kids too. However, you need to do this by a Cydia tweak.