I have recently had difficulty receiving text messages & voicemails. Today, I got a voicemail from A WEEK AGO from a potential employer. In order to read most text messages, I have to go into my message inbox to read them, rather than getting a notification signal/tone/light/whatever, letting me know there's an unread message.
I have also had a problem with not hearing my phone when it rings. I have the volume all the way up & have tried NUMEROUS ringtones, but with no luck. This really sucks when you're trying to find a job before August 
I hope this makes sense, but it's getting very frustrating. 