This question already has an answer here:

I am trying to block certain phone numbers but when I go to settings I can't see the CALL+SMS option. What should I do? Is there any other way?

I am using a Lumia 520.

marked as duplicate by Ram Raj, Kolappan Nathan, row1 Jul 19 '16 at 8:36

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • provide the OS version – Ravimallya Jul 15 '16 at 6:50
  • 1
    @Ravimallya The tag 8.1 means that the phone is running Windows phone 8.1. The option remained the same in all minor versions of 8.1. What is the use of asking addtional details if there is no use for it. – Kolappan Nathan Jul 18 '16 at 14:41