why can I recieve sms alerts but when I go to respond back it says failed?

A

AC Question

Ok I have a few sms alerts that I got on my text messages and when I go to respond yes or no the message says fail. What can i do to fix this issue
 

B. Diddy

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Welcome to Android Central! Which phone? Are these normal text messages from other contacts? I'm just not sure if "SMS alerts" refers to the messages or the notifications.