Flash sms warning?
Numerous times today, at least four, I have recieved a strange on screen message stating "Sms message - sorry the number you are sending to does not contain enough digits. please check the number and try again. -DISMISS" it at the bottom of the screen it states "why am I getting this message" which then goes on to say it could be a flash sms and someone attempting to gain my information.
help, why is this happening?
is it safe?
COuld be be a coincidence could be random but my phone rebooted itself this morning with no prompting to do so.
iPhone 5s, iOS 9.3.1