On my iPhone 5s my visual voice mail no longer works?

On my IPhone 5s my visual voicemail stopped working. My personal greeting is gone and it now asks me to put in a mailbox number. No one can get pass this message and leave me a message in my voicemail. It did work until a week ago. I have this iPhone for only a month.

How to COMPLETELY make my iPhone silent?

I want it making no sound at all. Because even though changed it to silence mode, it still vibrates.

Any solution that I can make my iPhone have no sound and no vibration at all?

Greek hotel caused iPhone 6 damage, how to get reimbursed?

Power went out while charging my phone over night, now the phone nor the charger work at all and hotel says they'll only pay if i get it fixed here. But they don't have an Apple store, so I fear they'd mess with my insurance or do more damage.

How can I get them to either reimburse me, or pay Apple directly?
I'm from the US, have AT&T and do not have Apple Care.

How to switch my phone plan to an IPhone?

I currently have an Android phone and I would like to switch to an IPhone. Is there a way I could stay on the same phone plan? I'm with Virgin Mobile. I know you can switch to a new phone but I'm not sure if IPhones are different.

People who existed before the Digital Age, what did you do for fun?

I'm 13 and I'm starting to find digital tech boring and annoying. I mean, who cares if you upgraded to iPhone 5? Exactly! No one! School let out 4 days ago I'm stuck talking(texting) with people I know from school and It's really, really irritating. So basically, I'm asking all of YA's seniors what they did for fun.

I ordered a verizon wireless iphone 5c sunday from verizon online?

So i ordered a verizon wireless iphone 5c sunday and the email confirmation said it will be here in two business days. Which means tuesday or Wednesday well now today is memorial day and i know no mail is running. So does it mean i will get the phone Thursday or wedsday

How to decide between this year's Google Nexus phone or this year's iPhone?

I currently have a Nexus 5 that is running Android 5.1 at the moment. I have never had an iPhone. My upgrade is early next year. Nexus phones and iPhones come with the latest versions of their respective OS's. Google I/O 2015 will clear some details for the Nexus phone(s). WWDC will probably do the same for the next iPhone(s).