Why doesn't my iPhone 6 connect to Wi-Fi?

So when I connect to the Wi-Fi in my house it automatically turns off and uses data if I go on safari, on Netflix, and even Instagram. So I decided to try it on my friends phone & when I tried use them on her phone, the Wi-Fi stays on and it doesn't turn off and use data. Also, the Wi-Fi isn't bad where I'm using it, on my phone it has 1 bar but on my friends phone it has 3. So I don't know what the problem is and why it isn't working.

Where can I get a cheap iPhone?

I actually broke my phone yesterday and I'm in need of a phone As soon as possible are there any online sites / stores where I can get a cheap iPhone?

Does South Park get sued more for using REAL companies on their show?

A lot of shows take real names but change them to avoid lawsuits, like Apple to Mapple, and iPod to MyPod (The Simpsons).

Family Guy changed Burger King to Burger Queen and Whopper to Bopper, and Quagmire even acknowledged the names were changed because they're on TV, breaking the fourth wall.

South Park just uses real names most of the time, Taco Bell, Chipotle, Best Buy, Apple, iPhone, AT&T, Verizon, Panda Express, Nintendo, etc.

South Park even made episodes to make fun of Family Guy, and they've parodied The Simpsons.

Do Trey Parker and Matt Stone (the creators of South Park) get sued a lot for using REAL companies names?

Added (1). They even made TACO BELL a HUGE part of the plot in the videogame, South Park: The Stick of Truth. PewDiePie said he bets they'll get sued for that in his lets play of the game.

EPSON WF-3640 Series takes long to respond to print jobs?

Since the moment I installed this printer, it takes a long time to respond to print jobs from my laptop. It is connected through Wi-Fi.

Other functions, such as copying, goes well.

When I print something from my Iphone, it goes very quick. However, if I print something from my Macbook Air, it takes about 10 minutes to print.

What to do?

Can I use a Verizon iPhone 4 with tracfone?

I've been trying to set it up for hours now, transferring my old tracfone number to the iPhone and ended up calling customer service. The lady on the phone had me running in circles. Kept telling me that my MEID was wrong because it had letters (which it does) then told me I needed to buy a sim card for it. It doesn't HAVE a sim card slot. Is there a way to get to it?