Hello. Within the past couple weeks, I've had issues with sending texts to one person. I can text anyone else just fine. I'll text them and they don't get my texts until nearly a week later all at once. They told me they've texted me as well, however, I never receive any of their messages. Is there any way to fix this? I've tried a soft reset, deleting texts, even a factory reset and still, nothing. Any help would be appreciated. I only bought this phone about a little over a month ago. Both of us are on Sprint by the way.