Can't seem to figure out how to block SMS from a certain number on my Galaxy S6 sm-g920v. Am I missing something or does mine not have that option? All the tutorials I've watched has said to go into Samsung Messenges, click the conversation of the person I wish to block, click "more" in the top right, then click "add to spam list". There is not an option to add to spam list. Please help! My ex is very persistent and I rather not have to constantly be turning my phone on and off when I need to use it. Thank you!