WhatsApp says I have no contacts after reinstall?

My WhatsApp was having trouble updating statuses and refreshing my favourites page so I deleted the app and reinstalled it.
After I reinstalled it says I have no contacts with WhatsApp, and it just gives me the oppurtunity to invite them to get it, however I know that they already have it.
How do I fix this problem? The WhatsApp version I have is for iPhone.

Am I Poor, Lower Middle Class, Upper Middle Class, Or Rich?

I don't want to brag, but I really want to know! I'm in the 8th Grade in A girls Prep school. Some of my friends always come to my house, and they usually just gawk at it saying "You my friend, are rich!" I'm like "I'm?" And they just look at me like i'm crazy! I have:
*A 3 story house (Single)
*I live in Beacon Hill, Boston
*5 master bedrooms
*4 grand bathrooms and 1 big bathroom (Full) in each bedroom
*2 kitchens, both american-styled
*3 living rooms, 1 in each floor
*6 Plasma Screen Tvs (Stuck on wall)
*A Female maltese dog (Pure-bred, sorry I had to say that, because it would only be a normal dog if I said 'Maltese')
*A parrot (Like those HUMONGOUS birds)
*A walk-in closet with a grand mirror in my room
*A small, mini pool in the back with heating adjustments.
*A small, cheap 600$ Jaccuzi (like those cheap ones that are still good)
*We have a big garden in the front and back, we also have our own gardener that comes every week and mows the lawn
*I have an ipod touch 4
*My parents recently bought me the all-new iphone 5 (Blue!)
*I have an MacBook Pro
*I buy All my clothes in abercombie and fitch, american eagle, aeropostle, Hollister. Macy's, Juicy, Love Couture, and banana boat.
*I love wearing skinny jeans, skirts, and daisy-dukes!
*I buy clothes for my maltese, Precious, and buy her christmas, casual, halloween, etc.clothes for dogs!
*I have HD Tv with on-demand, and every single channel from 1-999
*My dad works for the government, and gets 90$ an hour. He's half-dominican but is actually naturally white in skin color. He has brown hair and green eyes. He dresses in brand alot.
*My mom is a house-wife who cooks and goes to the mall everyday, She's white and has blonde hair, blue eyes- the common bostonian. She has a boston accent. She dresses professionel, even when she's at the house. Heels, makeup, all that stuff.
*We have 3 cars, a mercedes that is from 2009, a porcshe (didn't spell right) 2011, and actually a ferrari, which is from 2012. They're actually talking about buying a new car.

So am I rich, Upper middle class, lower middle class, or poor?

How to hide an app on my iPhone?

I basically want to lock away my facebook app with a passcode or just hide it out of sight. Is there anything that will do the job? I'm using an iPhone and do not want to jailbreak it.

How to get your iPhone off connect to iTunes?

Ok last night I went to update my phone and in the process the window with the itunes logo and a usb chord came up. I don't want to restore it because I haven't saved anything onto my new computer. How do i get rid of it? Can I let it die and see if that works or should I take it into the apple store?

Which is a better material for a case?

Hi, I'm getting the new iphone and considering the price I want to give it plenty of protection
Which case is the better at absorbing impact force and energy and preventing damage?
A hard Durable plastic case? Or a Silicone gel Case?

How much is an iPhone 4, 4s, and 5?

I have upgrade due in feburary 2013, and I want to know much much an iPhone 4 cost with and upgrade vs without an upgrade, and what an iPhone 4s costs with vs without an upgrade, and what an iPhone 5 costs with an upgrade vs without an upgrade. So basically, tell me the six different prices, and please leave your opinion on which one you think is best for it's price, thanks!

My iphone 3gs keeps rebooting?

My iphone 3gs keeps rebooting. I will go to send a text and it will turn off but it will take a while for it to turn back on. I don't know what's wrong with it please help.

Should I buy and iPhone if I already own an iPad?

Hi right now I own a blackberry and it's really old it's the curve 9300 model but I love it like i don't know why I love blackberry so much but I'll be buying a new phone so what do you think? I also love iPhones and love my iPad but is it worth it since i already have an ipad?

What is on your christmas list? TEEN GIRLS Preferred

Boys can answer too! I just need a long list of items you think a teen girl would want for christmas, best answer 10 points.list must be long. Please no iphone, ipad, ipod, laptop or unnecessary things like that.