How to block female creeper's iphone call and text phone number?

I have Asian stalker who kept asking people about me, searching for me where I'm all the time, and scaring me often make me uncomfortable and avoidable. I'm very frustrated over the creeper who kept text messages to me, I told her leave me alone and I'm not into her, but she persist to harass me anywhere in the city. I did talk to customer service at sprint company and she talked on phone to company, after this conservation, she told me that she already establish to block this number. Once I turn off iMessage on iphone, this creeper wasn't able text me, then today, I turn on iphone, few minutes later, she text me again, I was start to mad about this because I did block this number. How can I block this number that she would never text me again? But I refuse to answer this text message because she wasn't understand what it meant to leave me alone.

Save her as a contact for example name her block then once the contact is saved it will give the option to block get me? Like click on settings for that contact and one should be blocked i feel bad for you bro a crazy lay on you lolxD

You will have to change your number completely. If you just block her number she will use another number and text anyway. Just change your number.