I apologize if this has already been asked, but I have no option on my Verizon HTC One M8 to block text/SMS messages from a user using the default messaging app. HTC and Verizon both say to hold down on the message and an option should pop up with "block" - but it just isn't there. Likewise, the block option on the contact screen only specifically says block calls from the user - says nothing about text messages. I spoke with HTC and they said they didn't know why the option wasn't there (?????) but to try a third party blocking app or block users with Verizon. I tried several apps and none block text messages - I still get text messages from people on my block list. Does anyone know what's going on with this? It seems like the Verizon version of the phone doesn't have this feature and it seems incompatible with other apps. Is there a solution besides adding numbers to the Verizon block list?