Iphone volume buttons not working?

The speakers work fine, it isn't on silent, but when i try to adjust the volume it doesn't work? The keyboard clicks don't sound anymore and neither does the lock sound? I have no idea why. I already tried turning it off and on again.

Added (1). And it only works if i have headphones in. Or else the music and stuff won't sound.

Should i be worried or angry?

So my boyfriend and I are in a kind off long distance relationship… He lives about three hours away from me. He was supposed to come down and see me today however I haven't heard anything from him since last night 9pm when he basically didn't answer any of my text messages and on iPhone you can know if someone read your messages or not. I don't know if I should be worried or angry because he basically ditched me. I called him today ( we're supposed to meet) he didn't even answe my calls.

Before this he also was acting really rude with me when I cut things off he got really dramatic and apologized but now just two days later he's back at it again.

I don't know his friends personally but I'm on the verge of Facebook Inboxing one of his friends to see if he's okay but that would make me look weird

How to complain about an IPhone APP?

I have a Photography APP that I bought quite recently and when I open It up It works but when I scroll through to the extras It quickly scrolls back, they don't have a contact us option anywhere, how can I refund/complain this?

Has someone tried to unlock my iPhone?

I changed my pass code on my phone went for a run come back went to enter my pads code, forgetting I changed it, entered the wrong one and it automaticly locked for 15 minutes straight away. Is this because it was a new code or has there been failed attempts recently?